diff --git a/OpenSim/Framework/Console/CommandConsole.cs b/OpenSim/Framework/Console/CommandConsole.cs
index 0d6288b5a3..2bb7de1cae 100644
--- a/OpenSim/Framework/Console/CommandConsole.cs
+++ b/OpenSim/Framework/Console/CommandConsole.cs
@@ -29,6 +29,7 @@ using System;
 using System.Xml;
 using System.Collections.Generic;
 using System.Diagnostics;
+using System.Linq;
 using System.Reflection;
 using System.Text;
 using System.Text.RegularExpressions;
@@ -40,6 +41,8 @@ namespace OpenSim.Framework.Console
 {
     public class Commands : ICommands
     {
+//        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
         /// <summary>
         /// Encapsulates a command that can be invoked from the console
         /// </summary>
@@ -76,12 +79,19 @@ namespace OpenSim.Framework.Console
             public List<CommandDelegate> fn;
         }
 
+        public const string GeneralHelpText = "For more information, type 'help <item>' where <item> is one of the following categories:";
+
         /// <value>
         /// Commands organized by keyword in a tree
         /// </value>
         private Dictionary<string, object> tree =
                 new Dictionary<string, object>();
 
+        /// <summary>
+        /// Commands organized by module
+        /// </summary>
+        private Dictionary<string, List<CommandInfo>> m_modulesCommands = new Dictionary<string, List<CommandInfo>>();
+
         /// <summary>
         /// Get help for the given help string
         /// </summary>
@@ -98,8 +108,8 @@ namespace OpenSim.Framework.Console
             // General help
             if (helpParts.Count == 0)
             {
-                help.AddRange(CollectHelp(tree));
-                help.Sort();
+                help.Add(GeneralHelpText);
+                help.AddRange(CollectModulesHelp(tree));
             }
             else
             {
@@ -118,6 +128,13 @@ namespace OpenSim.Framework.Console
         {
             string originalHelpRequest = string.Join(" ", helpParts.ToArray());
             List<string> help = new List<string>();
+
+            // Check modules first to see if we just need to display a list of those commands
+            if (TryCollectModuleHelp(originalHelpRequest, help))
+            {
+                help.Insert(0, GeneralHelpText);
+                return help;
+            }
             
             Dictionary<string, object> dict = tree;
             while (helpParts.Count > 0)
@@ -161,25 +178,61 @@ namespace OpenSim.Framework.Console
             return help;
         }
 
-        private List<string> CollectHelp(Dictionary<string, object> dict)
+        /// <summary>
+        /// Try to collect help for the given module if that module exists.
+        /// </summary>
+        /// <param name="moduleName"></param>
+        /// <param name="helpText">/param>
+        /// <returns>true if there was the module existed, false otherwise.</returns>
+        private bool TryCollectModuleHelp(string moduleName, List<string> helpText)
         {
-            List<string> result = new List<string>();
-
-            foreach (KeyValuePair<string, object> kvp in dict)
+            lock (m_modulesCommands)
             {
-                if (kvp.Value is Dictionary<string, Object>)
+                if (m_modulesCommands.ContainsKey(moduleName))
                 {
-                    result.AddRange(CollectHelp((Dictionary<string, Object>)kvp.Value));
+                    List<CommandInfo> commands = m_modulesCommands[moduleName];
+                    var ourHelpText = commands.ConvertAll(c => string.Format("{0} - {1}", c.help_text, c.long_help));
+                    ourHelpText.Sort();
+                    helpText.AddRange(ourHelpText);
+
+                    return true;
                 }
                 else
                 {
-                    if (((CommandInfo)kvp.Value).long_help != String.Empty)
-                        result.Add(((CommandInfo)kvp.Value).help_text+" - "+
-                                ((CommandInfo)kvp.Value).long_help);
+                    return false;
                 }
             }
-            return result;
         }
+
+        private List<string> CollectModulesHelp(Dictionary<string, object> dict)
+        {
+            lock (m_modulesCommands)
+            {
+                List<string> helpText = new List<string>(m_modulesCommands.Keys);
+                helpText.Sort();
+                return helpText;
+            }
+        }
+
+//        private List<string> CollectHelp(Dictionary<string, object> dict)
+//        {
+//            List<string> result = new List<string>();
+//
+//            foreach (KeyValuePair<string, object> kvp in dict)
+//            {
+//                if (kvp.Value is Dictionary<string, Object>)
+//                {
+//                    result.AddRange(CollectHelp((Dictionary<string, Object>)kvp.Value));
+//                }
+//                else
+//                {
+//                    if (((CommandInfo)kvp.Value).long_help != String.Empty)
+//                        result.Add(((CommandInfo)kvp.Value).help_text+" - "+
+//                                ((CommandInfo)kvp.Value).long_help);
+//                }
+//            }
+//            return result;
+//        }
         
         /// <summary>
         /// Add a command to those which can be invoked from the console.
@@ -212,21 +265,19 @@ namespace OpenSim.Framework.Console
 
             Dictionary<string, Object> current = tree;
             
-            foreach (string s in parts)
+            foreach (string part in parts)
             {
-                if (current.ContainsKey(s))
+                if (current.ContainsKey(part))
                 {
-                    if (current[s] is Dictionary<string, Object>)
-                    {
-                        current = (Dictionary<string, Object>)current[s];
-                    }
+                    if (current[part] is Dictionary<string, Object>)
+                        current = (Dictionary<string, Object>)current[part];
                     else
                         return;
                 }
                 else
                 {
-                    current[s] = new Dictionary<string, Object>();
-                    current = (Dictionary<string, Object>)current[s];
+                    current[part] = new Dictionary<string, Object>();
+                    current = (Dictionary<string, Object>)current[part];
                 }
             }
 
@@ -250,6 +301,24 @@ namespace OpenSim.Framework.Console
             info.fn = new List<CommandDelegate>();
             info.fn.Add(fn);
             current[String.Empty] = info;
+
+            // Now add command to modules dictionary
+            lock (m_modulesCommands)
+            {
+                List<CommandInfo> commands;
+                if (m_modulesCommands.ContainsKey(module))
+                {
+                    commands = m_modulesCommands[module];
+                }
+                else
+                {
+                    commands = new List<CommandInfo>();
+                    m_modulesCommands[module] = commands;
+                }
+
+//                m_log.DebugFormat("[COMMAND CONSOLE]: Adding to category {0} command {1}", module, command);
+                commands.Add(info);
+            }
         }
 
         public string[] FindNextOption(string[] cmd, bool term)
@@ -607,8 +676,9 @@ namespace OpenSim.Framework.Console
         {
             Commands = new Commands();
 
-            Commands.AddCommand("console", false, "help", "help [<command>]", 
-                    "Get general command list or more detailed help on a specific command", Help);
+            Commands.AddCommand(
+                "Help", false, "help", "help [<item>]",
+                "Display help on a particular command or on a list of commands in a category", Help);
         }
 
         private void Help(string module, string[] cmd)
diff --git a/OpenSim/Framework/ICommandConsole.cs b/OpenSim/Framework/ICommandConsole.cs
index d33b9b5772..ca0ff936ca 100644
--- a/OpenSim/Framework/ICommandConsole.cs
+++ b/OpenSim/Framework/ICommandConsole.cs
@@ -40,7 +40,7 @@ namespace OpenSim.Framework
         /// <summary>
         /// Get help for the given help string
         /// </summary>
-        /// <param name="helpParts">Parsed parts of the help string.  If empty then general help is returned.</param>
+        /// <param name="cmd">Parsed parts of the help string.  If empty then general help is returned.</param>
         /// <returns></returns>
         List<string> GetHelp(string[] cmd);
 
diff --git a/OpenSim/Framework/Servers/BaseOpenSimServer.cs b/OpenSim/Framework/Servers/BaseOpenSimServer.cs
index 5f5142b4c9..06a8021b5f 100644
--- a/OpenSim/Framework/Servers/BaseOpenSimServer.cs
+++ b/OpenSim/Framework/Servers/BaseOpenSimServer.cs
@@ -161,43 +161,43 @@ namespace OpenSim.Framework.Servers
                     Notice(String.Format("Console log level is {0}", m_consoleAppender.Threshold));
                 }
                 
-                m_console.Commands.AddCommand("base", false, "quit",
+                m_console.Commands.AddCommand("General", false, "quit",
                         "quit",
                         "Quit the application", HandleQuit);
 
-                m_console.Commands.AddCommand("base", false, "shutdown",
+                m_console.Commands.AddCommand("General", false, "shutdown",
                         "shutdown",
                         "Quit the application", HandleQuit);
 
-                m_console.Commands.AddCommand("base", false, "set log level",
+                m_console.Commands.AddCommand("General", false, "set log level",
                         "set log level <level>",
                         "Set the console logging level", HandleLogLevel);
 
-                m_console.Commands.AddCommand("base", false, "show info",
+                m_console.Commands.AddCommand("General", false, "show info",
                         "show info",
                         "Show general information about the server", HandleShow);
 
-                m_console.Commands.AddCommand("base", false, "show stats",
+                m_console.Commands.AddCommand("General", false, "show stats",
                         "show stats",
                         "Show statistics", HandleShow);
 
-                m_console.Commands.AddCommand("base", false, "show threads",
+                m_console.Commands.AddCommand("General", false, "show threads",
                         "show threads",
                         "Show thread status", HandleShow);
 
-                m_console.Commands.AddCommand("base", false, "show uptime",
+                m_console.Commands.AddCommand("General", false, "show uptime",
                         "show uptime",
                         "Show server uptime", HandleShow);
 
-                m_console.Commands.AddCommand("base", false, "show version",
+                m_console.Commands.AddCommand("General", false, "show version",
                         "show version",
                         "Show server version", HandleShow);
 
-                m_console.Commands.AddCommand("base", false, "threads abort",
+                m_console.Commands.AddCommand("General", false, "threads abort",
                         "threads abort <thread-id>",
                         "Abort a managed thread.  Use \"show threads\" to find possible threads.", HandleThreadsAbort);
 
-                m_console.Commands.AddCommand("base", false, "threads show",
+                m_console.Commands.AddCommand("General", false, "threads show",
                         "threads show",
                         "Show thread status.  Synonym for \"show threads\"",
                         (string module, string[] args) => Notice(GetThreadsReport()));
diff --git a/OpenSim/Region/Application/OpenSim.cs b/OpenSim/Region/Application/OpenSim.cs
index 31f2ed4889..8567eb874b 100644
--- a/OpenSim/Region/Application/OpenSim.cs
+++ b/OpenSim/Region/Application/OpenSim.cs
@@ -225,12 +225,12 @@ namespace OpenSim
         /// </summary>
         private void RegisterConsoleCommands()
         {
-            m_console.Commands.AddCommand("region", false, "force update",
+            m_console.Commands.AddCommand("Regions", false, "force update",
                                           "force update",
                                           "Force the update of all objects on clients",
                                           HandleForceUpdate);
 
-            m_console.Commands.AddCommand("region", false, "debug packet",
+            m_console.Commands.AddCommand("Comms", false, "debug packet",
                                           "debug packet <level> [<avatar-first-name> <avatar-last-name>]",
                                           "Turn on packet debugging",
                                             "If level >  255 then all incoming and outgoing packets are logged.\n"
@@ -242,7 +242,7 @@ namespace OpenSim
                                           + "If an avatar name is given then only packets from that avatar are logged",
                                           Debug);
 
-            m_console.Commands.AddCommand("region", false, "debug http",
+            m_console.Commands.AddCommand("Comms", false, "debug http",
                                           "debug http <level>",
                                           "Turn on inbound http request debugging for everything except the event queue (see debug eq).",
                                             "If level >= 2 then the handler used to service the request is logged.\n"
@@ -250,37 +250,37 @@ namespace OpenSim
                                           + "If level <= 0 then no extra http logging is done.\n",
                                           Debug);
 
-            m_console.Commands.AddCommand("region", false, "debug teleport", "debug teleport", "Toggle teleport route debugging", Debug);
+            m_console.Commands.AddCommand("Comms", false, "debug teleport", "debug teleport", "Toggle teleport route debugging", Debug);
 
-            m_console.Commands.AddCommand("region", false, "debug scene",
+            m_console.Commands.AddCommand("Regions", false, "debug scene",
                                           "debug scene <scripting> <collisions> <physics>",
                                           "Turn on scene debugging", Debug);
 
-            m_console.Commands.AddCommand("region", false, "change region",
+            m_console.Commands.AddCommand("Regions", false, "change region",
                                           "change region <region name>",
                                           "Change current console region", ChangeSelectedRegion);
 
-            m_console.Commands.AddCommand("region", false, "save xml",
+            m_console.Commands.AddCommand("Archiving", false, "save xml",
                                           "save xml",
                                           "Save a region's data in XML format", SaveXml);
 
-            m_console.Commands.AddCommand("region", false, "save xml2",
+            m_console.Commands.AddCommand("Archiving", false, "save xml2",
                                           "save xml2",
                                           "Save a region's data in XML2 format", SaveXml2);
 
-            m_console.Commands.AddCommand("region", false, "load xml",
+            m_console.Commands.AddCommand("Archiving", false, "load xml",
                                           "load xml [-newIDs [<x> <y> <z>]]",
                                           "Load a region's data from XML format", LoadXml);
 
-            m_console.Commands.AddCommand("region", false, "load xml2",
+            m_console.Commands.AddCommand("Archiving", false, "load xml2",
                                           "load xml2",
                                           "Load a region's data from XML2 format", LoadXml2);
 
-            m_console.Commands.AddCommand("region", false, "save prims xml2",
+            m_console.Commands.AddCommand("Archiving", false, "save prims xml2",
                                           "save prims xml2 [<prim name> <file name>]",
                                           "Save named prim to XML2", SavePrimsXml2);
 
-            m_console.Commands.AddCommand("region", false, "load oar",
+            m_console.Commands.AddCommand("Archiving", false, "load oar",
                                           "load oar [--merge] [--skip-assets] [<OAR path>]",
                                           "Load a region's data from an OAR archive.",
                                           "--merge will merge the OAR with the existing scene." + Environment.NewLine
@@ -289,7 +289,7 @@ namespace OpenSim
                                           + "  If this is not given then the command looks for an OAR named region.oar in the current directory.",
                                           LoadOar);
 
-            m_console.Commands.AddCommand("region", false, "save oar",
+            m_console.Commands.AddCommand("Archiving", false, "save oar",
                                           //"save oar [-v|--version=<N>] [-p|--profile=<url>] [<OAR path>]",
                                           "save oar [-h|--home=<url>] [--noassets] [--publish] [--perm=<permissions>] [<OAR path>]",
                                           "Save a region's data to an OAR archive.",
@@ -306,54 +306,54 @@ namespace OpenSim
                                           + " If this is not given then the oar is saved to region.oar in the current directory.",
                                           SaveOar);
 
-            m_console.Commands.AddCommand("region", false, "edit scale",
+            m_console.Commands.AddCommand("Regions", false, "edit scale",
                                           "edit scale <name> <x> <y> <z>",
                                           "Change the scale of a named prim", HandleEditScale);
 
-            m_console.Commands.AddCommand("region", false, "kick user",
+            m_console.Commands.AddCommand("Users", false, "kick user",
                                           "kick user <first> <last> [message]",
                                           "Kick a user off the simulator", KickUserCommand);
 
-            m_console.Commands.AddCommand("region", false, "show users",
+            m_console.Commands.AddCommand("Users", false, "show users",
                                           "show users [full]",
                                           "Show user data for users currently on the region", 
                                           "Without the 'full' option, only users actually on the region are shown."
                                             + "  With the 'full' option child agents of users in neighbouring regions are also shown.",
                                           HandleShow);
 
-            m_console.Commands.AddCommand("region", false, "show connections",
+            m_console.Commands.AddCommand("Comms", false, "show connections",
                                           "show connections",
                                           "Show connection data", HandleShow);
 
-            m_console.Commands.AddCommand("region", false, "show circuits",
+            m_console.Commands.AddCommand("Comms", false, "show circuits",
                                           "show circuits",
                                           "Show agent circuit data", HandleShow);
 
-            m_console.Commands.AddCommand("region", false, "show http-handlers",
+            m_console.Commands.AddCommand("Comms", false, "show http-handlers",
                                           "show http-handlers",
                                           "Show all registered http handlers", HandleShow);
 
-            m_console.Commands.AddCommand("region", false, "show pending-objects",
+            m_console.Commands.AddCommand("Comms", false, "show pending-objects",
                                           "show pending-objects",
                                           "Show # of objects on the pending queues of all scene viewers", HandleShow);
 
-            m_console.Commands.AddCommand("region", false, "show modules",
+            m_console.Commands.AddCommand("General", false, "show modules",
                                           "show modules",
                                           "Show module data", HandleShow);
 
-            m_console.Commands.AddCommand("region", false, "show regions",
+            m_console.Commands.AddCommand("Regions", false, "show regions",
                                           "show regions",
                                           "Show region data", HandleShow);
             
-            m_console.Commands.AddCommand("region", false, "show ratings",
+            m_console.Commands.AddCommand("Regions", false, "show ratings",
                                           "show ratings",
                                           "Show rating data", HandleShow);
 
-            m_console.Commands.AddCommand("region", false, "backup",
+            m_console.Commands.AddCommand("Regions", false, "backup",
                                           "backup",
                                           "Persist currently unsaved object changes immediately instead of waiting for the normal persistence call.", RunCommand);
 
-            m_console.Commands.AddCommand("region", false, "create region",
+            m_console.Commands.AddCommand("Regions", false, "create region",
                                           "create region [\"region name\"] <region_file.ini>",
                                           "Create a new region.",
                                           "The settings for \"region name\" are read from <region_file.ini>. Paths specified with <region_file.ini> are relative to your Regions directory, unless an absolute path is given."
@@ -362,62 +362,57 @@ namespace OpenSim
                                           + "If <region_file.ini> does not exist, it will be created.",
                                           HandleCreateRegion);
 
-            m_console.Commands.AddCommand("region", false, "restart",
+            m_console.Commands.AddCommand("Regions", false, "restart",
                                           "restart",
                                           "Restart all sims in this instance", RunCommand);
 
-            m_console.Commands.AddCommand("region", false, "config set",
+            m_console.Commands.AddCommand("General", false, "config set",
                                           "config set <section> <key> <value>",
                                           "Set a config option.  In most cases this is not useful since changed parameters are not dynamically reloaded.  Neither do changed parameters persist - you will have to change a config file manually and restart.", HandleConfig);
 
-            m_console.Commands.AddCommand("region", false, "config get",
+            m_console.Commands.AddCommand("General", false, "config get",
                                           "config get [<section>] [<key>]",
                                           "Synonym for config show",
                                           HandleConfig);
             
-            m_console.Commands.AddCommand("region", false, "config show",
+            m_console.Commands.AddCommand("General", false, "config show",
                                           "config show [<section>] [<key>]",
                                           "Show config information", 
                                           "If neither section nor field are specified, then the whole current configuration is printed." + Environment.NewLine
                                           + "If a section is given but not a field, then all fields in that section are printed.",
                                           HandleConfig);            
 
-            m_console.Commands.AddCommand("region", false, "config save",
+            m_console.Commands.AddCommand("General", false, "config save",
                                           "config save <path>",
                                           "Save current configuration to a file at the given path", HandleConfig);
 
-            m_console.Commands.AddCommand("region", false, "command-script",
+            m_console.Commands.AddCommand("General", false, "command-script",
                                           "command-script <script>",
                                           "Run a command script from file", RunCommand);
 
-            m_console.Commands.AddCommand("region", false, "remove-region",
+            m_console.Commands.AddCommand("Regions", false, "remove-region",
                                           "remove-region <name>",
                                           "Remove a region from this simulator", RunCommand);
 
-            m_console.Commands.AddCommand("region", false, "delete-region",
+            m_console.Commands.AddCommand("Regions", false, "delete-region",
                                           "delete-region <name>",
                                           "Delete a region from disk", RunCommand);
 
-            m_console.Commands.AddCommand("region", false, "modules list",
+            m_console.Commands.AddCommand("General", false, "modules list",
                                           "modules list",
                                           "List modules", HandleModules);
 
-            m_console.Commands.AddCommand("region", false, "modules load",
+            m_console.Commands.AddCommand("General", false, "modules load",
                                           "modules load <name>",
                                           "Load a module", HandleModules);
 
-            m_console.Commands.AddCommand("region", false, "modules unload",
+            m_console.Commands.AddCommand("General", false, "modules unload",
                                           "modules unload <name>",
                                           "Unload a module", HandleModules);
 
-            m_console.Commands.AddCommand("region", false, "Add-InventoryHost",
-                                          "Add-InventoryHost <host>",
-                                          String.Empty, RunCommand);
-
-            m_console.Commands.AddCommand("region", false, "kill uuid",
+            m_console.Commands.AddCommand("Regions", false, "kill uuid",
                                           "kill uuid <UUID>",
                                           "Kill an object by UUID", KillUUID);
-
         }
 
         public override void ShutdownSpecific()
@@ -829,14 +824,6 @@ namespace OpenSim
                 case "restart":
                     m_sceneManager.RestartCurrentScene();
                     break;
-
-                case "Add-InventoryHost":
-                    if (cmdparams.Length > 0)
-                    {
-                        MainConsole.Instance.Output("Not implemented.");
-                    }
-                    break;
-
             }
         }
 
diff --git a/OpenSim/Region/Application/OpenSimBase.cs b/OpenSim/Region/Application/OpenSimBase.cs
index 696473c76b..1ea27d9cc3 100644
--- a/OpenSim/Region/Application/OpenSimBase.cs
+++ b/OpenSim/Region/Application/OpenSimBase.cs
@@ -242,15 +242,15 @@ namespace OpenSim
 
                 foreach (string topic in topics)
                 {
-                    m_console.Commands.AddCommand("plugin", false, "help " + topic,
+                    m_console.Commands.AddCommand(topic, false, "help " + topic,
                                                   "help " + topic,
                                                   "Get help on plugin command '" + topic + "'",
                                                   HandleCommanderHelp);
-
-                    m_console.Commands.AddCommand("plugin", false, topic,
-                                                  topic,
-                                                  "Execute subcommand for plugin '" + topic + "'",
-                                                  null);
+//
+//                    m_console.Commands.AddCommand("General", false, topic,
+//                                                  topic,
+//                                                  "Execute subcommand for plugin '" + topic + "'",
+//                                                  null);
 
                     ICommander commander = null;
 
diff --git a/OpenSim/Region/ClientStack/Linden/Caps/EventQueue/EventQueueGetModule.cs b/OpenSim/Region/ClientStack/Linden/Caps/EventQueue/EventQueueGetModule.cs
index 8ba6f61caa..7c07c56aa5 100644
--- a/OpenSim/Region/ClientStack/Linden/Caps/EventQueue/EventQueueGetModule.cs
+++ b/OpenSim/Region/ClientStack/Linden/Caps/EventQueue/EventQueueGetModule.cs
@@ -106,7 +106,7 @@ namespace OpenSim.Region.ClientStack.Linden
                 scene.EventManager.OnRegisterCaps += OnRegisterCaps;
 
                 MainConsole.Instance.Commands.AddCommand(
-                    "event queue",
+                    "Comms",
                     false,
                     "debug eq",
                     "debug eq [0|1]",
diff --git a/OpenSim/Region/CoreModules/Asset/FlotsamAssetCache.cs b/OpenSim/Region/CoreModules/Asset/FlotsamAssetCache.cs
index 22c301be84..389fb7b871 100644
--- a/OpenSim/Region/CoreModules/Asset/FlotsamAssetCache.cs
+++ b/OpenSim/Region/CoreModules/Asset/FlotsamAssetCache.cs
@@ -203,10 +203,10 @@ namespace Flotsam.RegionModules.AssetCache
                         m_CacheDirectoryTierLen = 4;
                     }
 
-                    MainConsole.Instance.Commands.AddCommand(Name, true, "fcache status", "fcache status", "Display cache status", HandleConsoleCommand);
-                    MainConsole.Instance.Commands.AddCommand(Name, true, "fcache clear",  "fcache clear [file] [memory]", "Remove all assets in the cache.  If file or memory is specified then only this cache is cleared.", HandleConsoleCommand);
-                    MainConsole.Instance.Commands.AddCommand(Name, true, "fcache assets", "fcache assets", "Attempt a deep scan and cache of all assets in all scenes", HandleConsoleCommand);
-                    MainConsole.Instance.Commands.AddCommand(Name, true, "fcache expire", "fcache expire <datetime>", "Purge cached assets older then the specified date/time", HandleConsoleCommand);
+                    MainConsole.Instance.Commands.AddCommand("Assets", true, "fcache status", "fcache status", "Display cache status", HandleConsoleCommand);
+                    MainConsole.Instance.Commands.AddCommand("Assets", true, "fcache clear",  "fcache clear [file] [memory]", "Remove all assets in the cache.  If file or memory is specified then only this cache is cleared.", HandleConsoleCommand);
+                    MainConsole.Instance.Commands.AddCommand("Assets", true, "fcache assets", "fcache assets", "Attempt a deep scan and cache of all assets in all scenes", HandleConsoleCommand);
+                    MainConsole.Instance.Commands.AddCommand("Assets", true, "fcache expire", "fcache expire <datetime>", "Purge cached assets older then the specified date/time", HandleConsoleCommand);
                 }
             }
         }
diff --git a/OpenSim/Region/CoreModules/Avatar/Dialog/DialogModule.cs b/OpenSim/Region/CoreModules/Avatar/Dialog/DialogModule.cs
index ffe77187a5..325067c9ff 100644
--- a/OpenSim/Region/CoreModules/Avatar/Dialog/DialogModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Dialog/DialogModule.cs
@@ -51,12 +51,12 @@ namespace OpenSim.Region.CoreModules.Avatar.Dialog
             m_scene.RegisterModuleInterface<IDialogModule>(this);
 
             m_scene.AddCommand(
-                this, "alert", "alert <message>",
+                "Users", this, "alert", "alert <message>",
                 "Send an alert to everyone",
                 HandleAlertConsoleCommand);
 
             m_scene.AddCommand(
-                this, "alert-user", "alert-user <first> <last> <message>",
+                "Users", this, "alert-user", "alert-user <first> <last> <message>",
                 "Send an alert to a user",
                 HandleAlertConsoleCommand);
         }
diff --git a/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/InventoryArchiverModule.cs b/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/InventoryArchiverModule.cs
index 7cf0e01113..ac22c3f079 100644
--- a/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/InventoryArchiverModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/InventoryArchiverModule.cs
@@ -108,7 +108,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Archiver
                 OnInventoryArchiveSaved += SaveInvConsoleCommandCompleted;
                 
                 scene.AddCommand(
-                    this, "load iar",
+                    "Archiving", this, "load iar",
                     "load iar [-m|--merge] <first> <last> <inventory path> <password> [<IAR path>]",
                     "Load user inventory archive (IAR).",
                     "-m|--merge is an option which merges the loaded IAR with existing inventory folders where possible, rather than always creating new ones"
@@ -121,7 +121,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Archiver
                     HandleLoadInvConsoleCommand);
                 
                 scene.AddCommand(
-                    this, "save iar",
+                    "Archiving", this, "save iar",
                     "save iar [-h|--home=<url>] [--noassets] <first> <last> <inventory path> <password> [<IAR path>] [-c|--creators] [-v|--verbose]",
                     "Save user inventory archive (IAR).", 
                     "<first> is the user's first name.\n"
diff --git a/OpenSim/Region/CoreModules/Framework/Caps/CapabilitiesModule.cs b/OpenSim/Region/CoreModules/Framework/Caps/CapabilitiesModule.cs
index 9d1538f52d..4ea85a8bcb 100644
--- a/OpenSim/Region/CoreModules/Framework/Caps/CapabilitiesModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/Caps/CapabilitiesModule.cs
@@ -69,9 +69,10 @@ namespace OpenSim.Region.CoreModules.Framework
         {
             m_scene = scene;
             m_scene.RegisterModuleInterface<ICapabilitiesModule>(this);
-            MainConsole.Instance.Commands.AddCommand("Capabilities", false, "show caps",
+
+            MainConsole.Instance.Commands.AddCommand("Comms", false, "show caps",
                 "show caps",
-                "Shows all registered capabilities", HandleShowCapsCommand);
+                "Shows all registered capabilities for users", HandleShowCapsCommand);
         }
 
         public void RegionLoaded(Scene scene)
diff --git a/OpenSim/Region/CoreModules/Framework/Monitoring/MonitorModule.cs b/OpenSim/Region/CoreModules/Framework/Monitoring/MonitorModule.cs
index 3f466be6fe..7f8271d401 100644
--- a/OpenSim/Region/CoreModules/Framework/Monitoring/MonitorModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/Monitoring/MonitorModule.cs
@@ -72,7 +72,7 @@ namespace OpenSim.Region.CoreModules.Framework.Monitoring
 
             m_scene = scene;
 
-            m_scene.AddCommand(this, "monitor report",
+            m_scene.AddCommand("General", this, "monitor report",
                                "monitor report",
                                "Returns a variety of statistics about the current region and/or simulator",
                                DebugMonitors);
diff --git a/OpenSim/Region/CoreModules/Framework/UserManagement/UserManagementModule.cs b/OpenSim/Region/CoreModules/Framework/UserManagement/UserManagementModule.cs
index b4f6b5acc6..554af14071 100644
--- a/OpenSim/Region/CoreModules/Framework/UserManagement/UserManagementModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/UserManagement/UserManagementModule.cs
@@ -80,7 +80,7 @@ namespace OpenSim.Region.CoreModules.Framework.UserManagement
             //        }
             //    }
             //}
-            MainConsole.Instance.Commands.AddCommand("grid", true,
+            MainConsole.Instance.Commands.AddCommand("Users", true,
                 "show names",
                 "show names",
                 "Show the bindings between user UUIDs and user names",
diff --git a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/LocalGridServiceConnector.cs b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/LocalGridServiceConnector.cs
index 3c36799050..3cc1b146cd 100644
--- a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/LocalGridServiceConnector.cs
+++ b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/LocalGridServiceConnector.cs
@@ -126,12 +126,9 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Grid
 
         public void PostInitialise()
         {
-            if (m_MainInstance == this)
-            {
-                MainConsole.Instance.Commands.AddCommand("LocalGridConnector", false, "show neighbours",
-                    "show neighbours",
-                    "Shows the local regions' neighbours", NeighboursCommand);
-            }
+            MainConsole.Instance.Commands.AddCommand("Regions", false, "show neighbours",
+                "show neighbours",
+                "Shows the local regions' neighbours", NeighboursCommand);
         }
 
         public void Close()
diff --git a/OpenSim/Region/CoreModules/World/Access/AccessModule.cs b/OpenSim/Region/CoreModules/World/Access/AccessModule.cs
index 2399134349..553a32d3bd 100644
--- a/OpenSim/Region/CoreModules/World/Access/AccessModule.cs
+++ b/OpenSim/Region/CoreModules/World/Access/AccessModule.cs
@@ -47,21 +47,21 @@ namespace OpenSim.Region.CoreModules.World
 
         public void Initialise(IConfigSource config)
         {
-            MainConsole.Instance.Commands.AddCommand("access", true,
+            MainConsole.Instance.Commands.AddCommand("Users", true,
                     "login enable",
                     "login enable",
                     "Enable simulator logins",
                     String.Empty,
                     HandleLoginCommand);
 
-            MainConsole.Instance.Commands.AddCommand("access", true,
+            MainConsole.Instance.Commands.AddCommand("Users", true,
                     "login disable",
                     "login disable",
                     "Disable simulator logins",
                     String.Empty,
                     HandleLoginCommand);
 
-            MainConsole.Instance.Commands.AddCommand("access", true,
+            MainConsole.Instance.Commands.AddCommand("Users", true,
                     "login status",
                     "login status",
                     "Show login status",
diff --git a/OpenSim/Region/CoreModules/World/Estate/EstateManagementCommands.cs b/OpenSim/Region/CoreModules/World/Estate/EstateManagementCommands.cs
index f6d1a826c7..0375c4f72e 100644
--- a/OpenSim/Region/CoreModules/World/Estate/EstateManagementCommands.cs
+++ b/OpenSim/Region/CoreModules/World/Estate/EstateManagementCommands.cs
@@ -62,14 +62,14 @@ namespace OpenSim.Region.CoreModules.World.Estate
         {            
             m_log.DebugFormat("[ESTATE MODULE]: Setting up estate commands for region {0}", m_module.Scene.RegionInfo.RegionName);
             
-            m_module.Scene.AddCommand(m_module, "set terrain texture",
+            m_module.Scene.AddCommand("estate", m_module, "set terrain texture",
                                "set terrain texture <number> <uuid> [<x>] [<y>]",
                                "Sets the terrain <number> to <uuid>, if <x> or <y> are specified, it will only " +
                                "set it on regions with a matching coordinate. Specify -1 in <x> or <y> to wildcard" +
                                " that coordinate.",
                                consoleSetTerrainTexture);
 
-            m_module.Scene.AddCommand(m_module, "set terrain heights",
+            m_module.Scene.AddCommand("estate", m_module, "set terrain heights",
                                "set terrain heights <corner> <min> <max> [<x>] [<y>]",
                                "Sets the terrain texture heights on corner #<corner> to <min>/<max>, if <x> or <y> are specified, it will only " +
                                "set it on regions with a matching coordinate. Specify -1 in <x> or <y> to wildcard" +
diff --git a/OpenSim/Region/CoreModules/World/Objects/Commands/ObjectCommandsModule.cs b/OpenSim/Region/CoreModules/World/Objects/Commands/ObjectCommandsModule.cs
index e3d04cd669..f5a5c92c4a 100644
--- a/OpenSim/Region/CoreModules/World/Objects/Commands/ObjectCommandsModule.cs
+++ b/OpenSim/Region/CoreModules/World/Objects/Commands/ObjectCommandsModule.cs
@@ -78,45 +78,45 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
             m_scene = scene;
             m_console = MainConsole.Instance;
 
-            m_console.Commands.AddCommand("region", false, "delete object owner",
+            m_console.Commands.AddCommand("Regions", false, "delete object owner",
                                           "delete object owner <UUID>",
                                           "Delete a scene object by owner", HandleDeleteObject);
-            m_console.Commands.AddCommand("region", false, "delete object creator",
+            m_console.Commands.AddCommand("Regions", false, "delete object creator",
                                           "delete object creator <UUID>",
                                           "Delete a scene object by creator", HandleDeleteObject);
-            m_console.Commands.AddCommand("region", false, "delete object uuid",
+            m_console.Commands.AddCommand("Regions", false, "delete object uuid",
                                           "delete object uuid <UUID>",
                                           "Delete a scene object by uuid", HandleDeleteObject);
-            m_console.Commands.AddCommand("region", false, "delete object name",
+            m_console.Commands.AddCommand("Regions", false, "delete object name",
                                           "delete object name <name>",
                                           "Delete a scene object by name", HandleDeleteObject);
-            m_console.Commands.AddCommand("region", false, "delete object outside",
+            m_console.Commands.AddCommand("Regions", false, "delete object outside",
                                           "delete object outside",
                                           "Delete all scene objects outside region boundaries", HandleDeleteObject);
 
             m_console.Commands.AddCommand(
-                "region",
+                "Regions",
                 false,
                 "show object uuid",
                 "show object uuid <UUID>",
                 "Show details of a scene object with the given UUID", HandleShowObjectByUuid);
 
             m_console.Commands.AddCommand(
-                "region",
+                "Regions",
                 false,
                 "show object name",
                 "show object name <name>",
                 "Show details of scene objects with the given name", HandleShowObjectByName);
 
             m_console.Commands.AddCommand(
-                "region",
+                "Regions",
                 false,
                 "show part uuid",
                 "show part uuid <UUID>",
                 "Show details of a scene object parts with the given UUID", HandleShowPartByUuid);
 
             m_console.Commands.AddCommand(
-                "region",
+                "Regions",
                 false,
                 "show part name",
                 "show part name <name>",
diff --git a/OpenSim/Region/CoreModules/World/Permissions/PermissionsModule.cs b/OpenSim/Region/CoreModules/World/Permissions/PermissionsModule.cs
index cd5ed2391a..ac03747620 100644
--- a/OpenSim/Region/CoreModules/World/Permissions/PermissionsModule.cs
+++ b/OpenSim/Region/CoreModules/World/Permissions/PermissionsModule.cs
@@ -210,17 +210,17 @@ namespace OpenSim.Region.CoreModules.World.Permissions
             m_scene.Permissions.OnControlPrimMedia += CanControlPrimMedia;
             m_scene.Permissions.OnInteractWithPrimMedia += CanInteractWithPrimMedia;
 
-            m_scene.AddCommand(this, "bypass permissions",
+            m_scene.AddCommand("Users", this, "bypass permissions",
                     "bypass permissions <true / false>",
                     "Bypass permission checks",
                     HandleBypassPermissions);
 
-            m_scene.AddCommand(this, "force permissions",
+            m_scene.AddCommand("Users", this, "force permissions",
                     "force permissions <true / false>",
                     "Force permissions on or off",
                     HandleForcePermissions);
 
-            m_scene.AddCommand(this, "debug permissions",
+            m_scene.AddCommand("Users", this, "debug permissions",
                     "debug permissions <true / false>",
                     "Turn on permissions debugging",
                     HandleDebugPermissions);                    
diff --git a/OpenSim/Region/CoreModules/World/Region/RestartModule.cs b/OpenSim/Region/CoreModules/World/Region/RestartModule.cs
index 0f37dddc86..fea4de04dd 100644
--- a/OpenSim/Region/CoreModules/World/Region/RestartModule.cs
+++ b/OpenSim/Region/CoreModules/World/Region/RestartModule.cs
@@ -66,21 +66,21 @@ namespace OpenSim.Region.CoreModules.World.Region
             m_Scene = scene;
             
             scene.RegisterModuleInterface<IRestartModule>(this);
-            MainConsole.Instance.Commands.AddCommand("RestartModule",
+            MainConsole.Instance.Commands.AddCommand("Regions",
                     false, "region restart bluebox",
                     "region restart bluebox <message> <delta seconds>+",
                     "Schedule a region restart", 
                     "Schedule a region restart after a given number of seconds.  If one delta is given then the region is restarted in delta seconds time.  A time to restart is sent to users in the region as a dismissable bluebox notice.  If multiple deltas are given then a notice is sent when we reach each delta.",
                     HandleRegionRestart);
             
-            MainConsole.Instance.Commands.AddCommand("RestartModule",
+            MainConsole.Instance.Commands.AddCommand("Regions",
                     false, "region restart notice",
                     "region restart notice <message> <delta seconds>+",
                     "Schedule a region restart", 
                     "Schedule a region restart after a given number of seconds.  If one delta is given then the region is restarted in delta seconds time.  A time to restart is sent to users in the region as a transient notice.  If multiple deltas are given then a notice is sent when we reach each delta.",
                     HandleRegionRestart);
             
-            MainConsole.Instance.Commands.AddCommand("RestartModule",
+            MainConsole.Instance.Commands.AddCommand("Regions",
                     false, "region restart abort",
                     "region restart abort [<message>]",
                     "Abort a region restart", HandleRegionRestart);
diff --git a/OpenSim/Region/CoreModules/World/Sun/SunModule.cs b/OpenSim/Region/CoreModules/World/Sun/SunModule.cs
index a838e1e4b3..9a954b8d51 100644
--- a/OpenSim/Region/CoreModules/World/Sun/SunModule.cs
+++ b/OpenSim/Region/CoreModules/World/Sun/SunModule.cs
@@ -277,18 +277,19 @@ namespace OpenSim.Region.CoreModules
             m_frame = 0;
 
             // This one puts an entry in the main help screen
-            m_scene.AddCommand(this, String.Empty, "sun", "Usage: sun [param] [value] - Get or Update Sun module paramater", null);
+//            m_scene.AddCommand("Regions", this, "sun", "sun", "Usage: sun [param] [value] - Get or Update Sun module paramater", null);
 
             // This one enables the ability to type just "sun" without any parameters
-            m_scene.AddCommand(this, "sun", "", "", HandleSunConsoleCommand);
+//            m_scene.AddCommand("Regions", this, "sun", "", "", HandleSunConsoleCommand);
             foreach (KeyValuePair<string, string> kvp in GetParamList())
             {
-                m_scene.AddCommand(this, String.Format("sun {0}", kvp.Key), String.Format("{0} - {1}", kvp.Key, kvp.Value), "", HandleSunConsoleCommand);
+                string sunCommand = string.Format("sun {0}", kvp.Key);
+                m_scene.AddCommand("Regions", this, sunCommand, string.Format("{0} [<value>]", sunCommand), kvp.Value, "", HandleSunConsoleCommand);
             }
 
             TimeZone local = TimeZone.CurrentTimeZone;
             TicksUTCOffset = local.GetUtcOffset(local.ToLocalTime(DateTime.Now)).Ticks;
-            m_log.Debug("[SUN]: localtime offset is " + TicksUTCOffset);
+            m_log.DebugFormat("[SUN]: localtime offset is {0}", TicksUTCOffset);
 
             // Align ticks with Second Life
 
diff --git a/OpenSim/Region/CoreModules/World/Wind/WindModule.cs b/OpenSim/Region/CoreModules/World/Wind/WindModule.cs
index a488725570..7b6fbda952 100644
--- a/OpenSim/Region/CoreModules/World/Wind/WindModule.cs
+++ b/OpenSim/Region/CoreModules/World/Wind/WindModule.cs
@@ -117,24 +117,31 @@ namespace OpenSim.Region.CoreModules
                 }
 
                 // This one puts an entry in the main help screen
-                m_scene.AddCommand(this, String.Empty, "wind", "Usage: wind <plugin> <param> [value] - Get or Update Wind paramaters", null);
+//                m_scene.AddCommand("Regions", this, "wind", "wind", "Usage: wind <plugin> <param> [value] - Get or Update Wind paramaters", null);
                 
                 // This one enables the ability to type just the base command without any parameters
-                m_scene.AddCommand(this, "wind", "", "", HandleConsoleCommand);
+//                m_scene.AddCommand("Regions", this, "wind", "", "", HandleConsoleCommand);
 
                 // Get a list of the parameters for each plugin
                 foreach (IWindModelPlugin windPlugin in m_availableWindPlugins.Values)
                 {
-                    m_scene.AddCommand(this, String.Format("wind base wind_plugin {0}", windPlugin.Name), String.Format("{0} - {1}", windPlugin.Name, windPlugin.Description), "", HandleConsoleBaseCommand);
-                    m_scene.AddCommand(this, String.Format("wind base wind_update_rate"), "Change the wind update rate.", "", HandleConsoleBaseCommand);
+//                    m_scene.AddCommand("Regions", this, String.Format("wind base wind_plugin {0}", windPlugin.Name), String.Format("{0} - {1}", windPlugin.Name, windPlugin.Description), "", HandleConsoleBaseCommand);
+                    m_scene.AddCommand(
+                        "Regions",
+                        this,
+                        "wind base wind_update_rate",
+                        "wind base wind_update_rate [<value>]",
+                        "Get or set the wind update rate.",
+                        "",
+                        HandleConsoleBaseCommand);
                     
                     foreach (KeyValuePair<string, string> kvp in windPlugin.WindParams())
                     {
-                        m_scene.AddCommand(this, String.Format("wind {0} {1}", windPlugin.Name, kvp.Key), String.Format("{0} : {1} - {2}", windPlugin.Name, kvp.Key, kvp.Value), "", HandleConsoleParamCommand);
+                        string windCommand = String.Format("wind {0} {1}", windPlugin.Name, kvp.Key);
+                        m_scene.AddCommand("Regions", this, windCommand, string.Format("{0} [<value>]", windCommand), kvp.Value, "", HandleConsoleParamCommand);
                     }
                 }
 
-
                 // Register event handlers for when Avatars enter the region, and frame ticks
                 m_scene.EventManager.OnFrame += WindUpdate;
                 m_scene.EventManager.OnMakeRootAgent += OnAgentEnteredRegion;
diff --git a/OpenSim/Region/CoreModules/World/WorldMap/WorldMapModule.cs b/OpenSim/Region/CoreModules/World/WorldMap/WorldMapModule.cs
index 74b047be14..2ee6419413 100644
--- a/OpenSim/Region/CoreModules/World/WorldMap/WorldMapModule.cs
+++ b/OpenSim/Region/CoreModules/World/WorldMap/WorldMapModule.cs
@@ -102,7 +102,7 @@ namespace OpenSim.Region.CoreModules.World.WorldMap
                 m_scene.RegisterModuleInterface<IWorldMapModule>(this);
 
                 m_scene.AddCommand(
-                    this, "export-map",
+                    "Regions", this, "export-map",
                     "export-map [<path>]",
                     "Save an image of the world map", HandleExportWorldMapConsoleCommand);
 
diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index df0fc945f2..5636792672 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -642,7 +642,7 @@ namespace OpenSim.Region.Framework.Scenes
 
             #endregion Region Settings
 
-            MainConsole.Instance.Commands.AddCommand("region", false, "reload estate",
+            MainConsole.Instance.Commands.AddCommand("estate", false, "reload estate",
                                           "reload estate",
                                           "Reload the estate data", HandleReloadEstate);
 
diff --git a/OpenSim/Region/Framework/Scenes/SceneBase.cs b/OpenSim/Region/Framework/Scenes/SceneBase.cs
index b313407f59..9c6b8842f9 100644
--- a/OpenSim/Region/Framework/Scenes/SceneBase.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneBase.cs
@@ -476,6 +476,63 @@ namespace OpenSim.Region.Framework.Scenes
         /// <summary>
         /// Call this from a region module to add a command to the OpenSim console.
         /// </summary>
+        /// <param name="mod">
+        /// The use of IRegionModuleBase is a cheap trick to get a different method signature,
+        /// though all new modules should be using interfaces descended from IRegionModuleBase anyway.
+        /// </param>
+        /// <param name="category">
+        /// Category of the command.  This is the section under which it will appear when the user asks for help
+        /// </param>
+        /// <param name="command"></param>
+        /// <param name="shorthelp"></param>
+        /// <param name="longhelp"></param>
+        /// <param name="callback"></param>
+        public void AddCommand(
+            string category, object mod, string command, string shorthelp, string longhelp, CommandDelegate callback)
+        {
+            AddCommand(category, mod, command, shorthelp, longhelp, string.Empty, callback);
+        }
+
+        /// <summary>
+        /// Call this from a region module to add a command to the OpenSim console.
+        /// </summary>
+        /// <param name="mod"></param>
+        /// <param name="command"></param>
+        /// <param name="shorthelp"></param>
+        /// <param name="longhelp"></param>
+        /// <param name="descriptivehelp"></param>
+        /// <param name="callback"></param>
+        public void AddCommand(object mod, string command, string shorthelp, string longhelp, string descriptivehelp, CommandDelegate callback)
+        {
+            string moduleName = "";
+
+            if (mod != null)
+            {
+                if (mod is IRegionModule)
+                {
+                    IRegionModule module = (IRegionModule)mod;
+                    moduleName = module.Name;
+                }
+                else if (mod is IRegionModuleBase)
+                {
+                    IRegionModuleBase module = (IRegionModuleBase)mod;
+                    moduleName = module.Name;
+                }
+                else
+                {
+                    throw new Exception("AddCommand module parameter must be IRegionModule or IRegionModuleBase");
+                }
+            }
+
+            AddCommand(moduleName, mod, command, shorthelp, longhelp, descriptivehelp, callback);
+        }
+
+        /// <summary>
+        /// Call this from a region module to add a command to the OpenSim console.
+        /// </summary>
+        /// <param name="category">
+        /// Category of the command.  This is the section under which it will appear when the user asks for help
+        /// </param>
         /// <param name="mod"></param>
         /// <param name="command"></param>
         /// <param name="shorthelp"></param>
@@ -483,12 +540,12 @@ namespace OpenSim.Region.Framework.Scenes
         /// <param name="descriptivehelp"></param>
         /// <param name="callback"></param>
         public void AddCommand(
-            object mod, string command, string shorthelp, string longhelp, string descriptivehelp, CommandDelegate callback)
+            string category, object mod, string command,
+            string shorthelp, string longhelp, string descriptivehelp, CommandDelegate callback)
         {
             if (MainConsole.Instance == null)
                 return;
 
-            string modulename = String.Empty;
             bool shared = false;
 
             if (mod != null)
@@ -496,20 +553,20 @@ namespace OpenSim.Region.Framework.Scenes
                 if (mod is IRegionModule)
                 {
                     IRegionModule module = (IRegionModule)mod;
-                    modulename = module.Name;
                     shared = module.IsSharedModule;
                 }
                 else if (mod is IRegionModuleBase)
                 {
-                    IRegionModuleBase module = (IRegionModuleBase)mod;
-                    modulename = module.Name;
                     shared = mod is ISharedRegionModule;
                 }
-                else throw new Exception("AddCommand module parameter must be IRegionModule or IRegionModuleBase");
+                else
+                {
+                    throw new Exception("AddCommand module parameter must be IRegionModule or IRegionModuleBase");
+                }
             }
 
             MainConsole.Instance.Commands.AddCommand(
-                modulename, shared, command, shorthelp, longhelp, descriptivehelp, callback);
+                category, shared, command, shorthelp, longhelp, descriptivehelp, callback);
         }
 
         public virtual ISceneObject DeserializeObject(string representation)
diff --git a/OpenSim/Region/OptionalModules/Agent/TextureSender/J2KDecoderCommandModule.cs b/OpenSim/Region/OptionalModules/Agent/TextureSender/J2KDecoderCommandModule.cs
index 439096a09f..c897aa5304 100644
--- a/OpenSim/Region/OptionalModules/Agent/TextureSender/J2KDecoderCommandModule.cs
+++ b/OpenSim/Region/OptionalModules/Agent/TextureSender/J2KDecoderCommandModule.cs
@@ -92,7 +92,7 @@ namespace OpenSim.Region.OptionalModules.Agent.TextureSender
                 m_scene = scene;
 
             MainConsole.Instance.Commands.AddCommand(
-                "j2k",
+                "Assets",
                 false,
                 "j2k decode",
                 "j2k decode <ID>",
diff --git a/OpenSim/Region/OptionalModules/Agent/UDP/Linden/LindenUDPInfoModule.cs b/OpenSim/Region/OptionalModules/Agent/UDP/Linden/LindenUDPInfoModule.cs
index 261029c091..a7ebeccdc9 100644
--- a/OpenSim/Region/OptionalModules/Agent/UDP/Linden/LindenUDPInfoModule.cs
+++ b/OpenSim/Region/OptionalModules/Agent/UDP/Linden/LindenUDPInfoModule.cs
@@ -82,19 +82,19 @@ namespace OpenSim.Region.CoreModules.UDP.Linden
                 m_scenes[scene.RegionInfo.RegionID] = scene;
 
             scene.AddCommand(
-                this, "image queues clear",
+                "Comms", this, "image queues clear",
                 "image queues clear <first-name> <last-name>",
                 "Clear the image queues (textures downloaded via UDP) for a particular client.",
                 (mod, cmd) => MainConsole.Instance.Output(HandleImageQueuesClear(cmd)));
 
             scene.AddCommand(
-                this, "image queues show",
+                "Comms", this, "image queues show",
                 "image queues show <first-name> <last-name>",
                 "Show the image queues (textures downloaded via UDP) for a particular client.",
                 (mod, cmd) => MainConsole.Instance.Output(GetImageQueuesReport(cmd)));
 
             scene.AddCommand(
-                this, "show pqueues",
+                "Comms", this, "show pqueues",
                 "show pqueues [full]",
                 "Show priority queue data for each client", 
                 "Without the 'full' option, only root agents are shown."
@@ -102,7 +102,7 @@ namespace OpenSim.Region.CoreModules.UDP.Linden
                 (mod, cmd) => MainConsole.Instance.Output(GetPQueuesReport(cmd)));
             
             scene.AddCommand(
-                this, "show queues",
+                "Comms", this, "show queues",
                 "show queues [full]",
                 "Show queue data for each client", 
                 "Without the 'full' option, only root agents are shown."
@@ -110,13 +110,13 @@ namespace OpenSim.Region.CoreModules.UDP.Linden
                 (mod, cmd) => MainConsole.Instance.Output(GetQueuesReport(cmd)));
 
             scene.AddCommand(
-                this, "show image queues",
+                "Comms", this, "show image queues",
                 "show image queues <first-name> <last-name>",
                 "Show the image queues (textures downloaded via UDP) for a particular client.",
                 (mod, cmd) => MainConsole.Instance.Output(GetImageQueuesReport(cmd)));
             
             scene.AddCommand(
-                this, "show throttles",
+                "Comms", this, "show throttles",
                 "show throttles [full]",
                 "Show throttle settings for each client and for the server overall", 
                 "Without the 'full' option, only root agents are shown."
@@ -124,7 +124,7 @@ namespace OpenSim.Region.CoreModules.UDP.Linden
                 (mod, cmd) => MainConsole.Instance.Output(GetThrottlesReport(cmd)));
 
             scene.AddCommand(
-                this, "emergency-monitoring",
+                "Comms", this, "emergency-monitoring",
                 "emergency-monitoring",
                 "Go on/off emergency monitoring mode",
                 "Go on/off emergency monitoring mode",
diff --git a/OpenSim/Region/OptionalModules/Asset/AssetInfoModule.cs b/OpenSim/Region/OptionalModules/Asset/AssetInfoModule.cs
index a5207ebcb0..41ec14f224 100644
--- a/OpenSim/Region/OptionalModules/Asset/AssetInfoModule.cs
+++ b/OpenSim/Region/OptionalModules/Asset/AssetInfoModule.cs
@@ -88,7 +88,7 @@ namespace OpenSim.Region.OptionalModules.Asset
                 m_scene = scene;
 
             MainConsole.Instance.Commands.AddCommand(
-                "asset",
+                "Assets",
                 false,
                 "show asset",
                 "show asset <ID>",
@@ -96,7 +96,7 @@ namespace OpenSim.Region.OptionalModules.Asset
                 HandleShowAsset);
 
             MainConsole.Instance.Commands.AddCommand(
-                "asset", false, "dump asset",
+                "Assets", false, "dump asset",
                 "dump asset <id>",
                 "Dump an asset",
                 HandleDumpAsset);
diff --git a/OpenSim/Region/OptionalModules/Avatar/Appearance/AppearanceInfoModule.cs b/OpenSim/Region/OptionalModules/Avatar/Appearance/AppearanceInfoModule.cs
index 2369d94aa1..6bb6729c83 100644
--- a/OpenSim/Region/OptionalModules/Avatar/Appearance/AppearanceInfoModule.cs
+++ b/OpenSim/Region/OptionalModules/Avatar/Appearance/AppearanceInfoModule.cs
@@ -94,13 +94,13 @@ namespace OpenSim.Region.OptionalModules.Avatar.Appearance
                 m_scenes[scene.RegionInfo.RegionID] = scene;
 
             scene.AddCommand(
-                this, "show appearance",
+                "Users", this, "show appearance",
                 "show appearance [<first-name> <last-name>]",
                 "Synonym for 'appearance show'",
                 HandleShowAppearanceCommand);
             
             scene.AddCommand(
-                this, "appearance show",
+                "Users", this, "appearance show",
                 "appearance show [<first-name> <last-name>]",
                 "Show appearance information for each avatar in the simulator.",
                 "This command checks whether the simulator has all the baked textures required to display an avatar to other viewers.  "
@@ -110,14 +110,14 @@ namespace OpenSim.Region.OptionalModules.Avatar.Appearance
                 HandleShowAppearanceCommand);
 
             scene.AddCommand(
-                this, "appearance send",
+                "Users", this, "appearance send",
                 "appearance send [<first-name> <last-name>]",
                 "Send appearance data for each avatar in the simulator to other viewers.",
                 "Optionally, you can specify that only a particular avatar's appearance data is sent.",
                 HandleSendAppearanceCommand);
 
             scene.AddCommand(
-                this, "appearance rebake",
+                "Users", this, "appearance rebake",
                 "appearance rebake <first-name> <last-name>",
                 "Send a request to the user's viewer for it to rebake and reupload its appearance textures.",
                 "This is currently done for all baked texture references previously received, whether the simulator can find the asset or not."
@@ -127,7 +127,7 @@ namespace OpenSim.Region.OptionalModules.Avatar.Appearance
                 HandleRebakeAppearanceCommand);
 
             scene.AddCommand(
-                this, "appearance find",
+                "Users", this, "appearance find",
                 "appearance find <uuid-or-start-of-uuid>",
                 "Find out which avatar uses the given asset as a baked texture, if any.",
                 "You can specify just the beginning of the uuid, e.g. 2008a8d.  A longer UUID must be in dashed format.",
diff --git a/OpenSim/Region/OptionalModules/PhysicsParameters/PhysicsParameters.cs b/OpenSim/Region/OptionalModules/PhysicsParameters/PhysicsParameters.cs
index 23ef7576f3..a3f68e58c6 100755
--- a/OpenSim/Region/OptionalModules/PhysicsParameters/PhysicsParameters.cs
+++ b/OpenSim/Region/OptionalModules/PhysicsParameters/PhysicsParameters.cs
@@ -100,22 +100,22 @@ namespace OpenSim.Region.OptionalModules.PhysicsParameters
         {
             if (!m_commandsLoaded)
             {
-                MainConsole.Instance.Commands.AddCommand("Physics", false, "physics set",
-                    "physics set",
-                    "Set physics parameter from currently selected region" + Environment.NewLine
-                    + "Invocation: " + setInvocation,
+                MainConsole.Instance.Commands.AddCommand(
+                    "Regions", false, "physics set",
+                    setInvocation,
+                    "Set physics parameter from currently selected region",
                     ProcessPhysicsSet);
 
-                MainConsole.Instance.Commands.AddCommand("Physics", false, "physics get",
-                    "physics get",
-                    "Get physics parameter from currently selected region" + Environment.NewLine
-                    + "Invocation: " + getInvocation, 
+                MainConsole.Instance.Commands.AddCommand(
+                    "Regions", false, "physics get",
+                    getInvocation,
+                    "Get physics parameter from currently selected region",
                     ProcessPhysicsGet);
 
-                MainConsole.Instance.Commands.AddCommand("Physics", false, "physics list",
-                    "physics list",
-                    "List settable physics parameters" + Environment.NewLine
-                    + "Invocation: " + listInvocation,
+                MainConsole.Instance.Commands.AddCommand(
+                    "Regions", false, "physics list",
+                    listInvocation,
+                    "List settable physics parameters",
                     ProcessPhysicsList);
 
                 m_commandsLoaded = true;
diff --git a/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs b/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
index fa5e3d8a9c..7712076a1b 100644
--- a/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
+++ b/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
@@ -281,22 +281,22 @@ namespace OpenSim.Region.ScriptEngine.XEngine
             }
 
             MainConsole.Instance.Commands.AddCommand(
-                "scripts", false, "xengine status", "xengine status", "Show status information",
+                "Scripts", false, "xengine status", "xengine status", "Show status information",
                 "Show status information on the script engine.",
                 HandleShowStatus);
 
             MainConsole.Instance.Commands.AddCommand(
-                "scripts", false, "scripts show", "scripts show [<script-item-uuid>]", "Show script information",
+                "Scripts", false, "scripts show", "scripts show [<script-item-uuid>]", "Show script information",
                 "Show information on all scripts known to the script engine."
                     + "If a <script-item-uuid> is given then only information on that script will be shown.",
                 HandleShowScripts);
 
             MainConsole.Instance.Commands.AddCommand(
-                "scripts", false, "show scripts", "show scripts [<script-item-uuid>]", "Show script information",
+                "Scripts", false, "show scripts", "show scripts [<script-item-uuid>]", "Show script information",
                 "Synonym for scripts show command", HandleShowScripts);
 
             MainConsole.Instance.Commands.AddCommand(
-                "scripts", false, "scripts suspend", "scripts suspend [<script-item-uuid>]", "Suspends all running scripts",
+                "Scripts", false, "scripts suspend", "scripts suspend [<script-item-uuid>]", "Suspends all running scripts",
                 "Suspends all currently running scripts.  This only suspends event delivery, it will not suspend a"
                     + " script that is currently processing an event.\n"
                     + "Suspended scripts will continue to accumulate events but won't process them.\n"
@@ -304,20 +304,20 @@ namespace OpenSim.Region.ScriptEngine.XEngine
                  (module, cmdparams) => HandleScriptsAction(cmdparams, HandleSuspendScript));
 
             MainConsole.Instance.Commands.AddCommand(
-                "scripts", false, "scripts resume", "scripts resume [<script-item-uuid>]", "Resumes all suspended scripts",
+                "Scripts", false, "scripts resume", "scripts resume [<script-item-uuid>]", "Resumes all suspended scripts",
                 "Resumes all currently suspended scripts.\n"
                     + "Resumed scripts will process all events accumulated whilst suspended."
                     + "If a <script-item-uuid> is given then only that script will be resumed.  Otherwise, all suitable scripts are resumed.",
                 (module, cmdparams) => HandleScriptsAction(cmdparams, HandleResumeScript));
 
             MainConsole.Instance.Commands.AddCommand(
-                "scripts", false, "scripts stop", "scripts stop [<script-item-uuid>]", "Stops all running scripts",
+                "Scripts", false, "scripts stop", "scripts stop [<script-item-uuid>]", "Stops all running scripts",
                 "Stops all running scripts."
                     + "If a <script-item-uuid> is given then only that script will be stopped.  Otherwise, all suitable scripts are stopped.",
                 (module, cmdparams) => HandleScriptsAction(cmdparams, HandleStopScript));
 
             MainConsole.Instance.Commands.AddCommand(
-                "scripts", false, "scripts start", "scripts start [<script-item-uuid>]", "Starts all stopped scripts",
+                "Scripts", false, "scripts start", "scripts start [<script-item-uuid>]", "Starts all stopped scripts",
                 "Starts all stopped scripts."
                     + "If a <script-item-uuid> is given then only that script will be started.  Otherwise, all suitable scripts are started.",
                 (module, cmdparams) => HandleScriptsAction(cmdparams, HandleStartScript));
diff --git a/OpenSim/Server/Base/ServicesServerBase.cs b/OpenSim/Server/Base/ServicesServerBase.cs
index a6f4e4769e..36c48e63c1 100644
--- a/OpenSim/Server/Base/ServicesServerBase.cs
+++ b/OpenSim/Server/Base/ServicesServerBase.cs
@@ -236,16 +236,16 @@ namespace OpenSim.Server.Base
 
             // Register the quit command
             //
-            MainConsole.Instance.Commands.AddCommand("base", false, "quit",
+            MainConsole.Instance.Commands.AddCommand("General", false, "quit",
                     "quit",
                     "Quit the application", HandleQuit);
 
-            MainConsole.Instance.Commands.AddCommand("base", false, "shutdown",
+            MainConsole.Instance.Commands.AddCommand("General", false, "shutdown",
                     "shutdown",
                     "Quit the application", HandleQuit);
-
+            
             // Register a command to read other commands from a file
-            MainConsole.Instance.Commands.AddCommand("base", false, "command-script",
+            MainConsole.Instance.Commands.AddCommand("General", false, "command-script",
                                           "command-script <script>",
                                           "Run a command script from file", HandleScript);
 
diff --git a/OpenSim/Server/Handlers/Asset/AssetServerConnector.cs b/OpenSim/Server/Handlers/Asset/AssetServerConnector.cs
index 9b80245267..8b9e749aa4 100644
--- a/OpenSim/Server/Handlers/Asset/AssetServerConnector.cs
+++ b/OpenSim/Server/Handlers/Asset/AssetServerConnector.cs
@@ -72,19 +72,19 @@ namespace OpenSim.Server.Handlers.Asset
             server.AddStreamHandler(new AssetServerPostHandler(m_AssetService));
             server.AddStreamHandler(new AssetServerDeleteHandler(m_AssetService, allowDelete));
 
-            MainConsole.Instance.Commands.AddCommand("kfs", false,
+            MainConsole.Instance.Commands.AddCommand("Assets", false,
                     "show asset",
                     "show asset <ID>",
                     "Show asset information",
                     HandleShowAsset);
 
-            MainConsole.Instance.Commands.AddCommand("kfs", false,
+            MainConsole.Instance.Commands.AddCommand("Assets", false,
                     "delete asset",
                     "delete asset <ID>",
                     "Delete asset from database",
                     HandleDeleteAsset);
 
-            MainConsole.Instance.Commands.AddCommand("kfs", false,
+            MainConsole.Instance.Commands.AddCommand("Assets", false,
                     "dump asset",
                     "dump asset <ID>",
                     "Dump asset to a file",
diff --git a/OpenSim/Services/GridService/GridService.cs b/OpenSim/Services/GridService/GridService.cs
index 89f071610d..3dc87bc5d5 100644
--- a/OpenSim/Services/GridService/GridService.cs
+++ b/OpenSim/Services/GridService/GridService.cs
@@ -84,14 +84,14 @@ namespace OpenSim.Services.GridService
 
                 if (MainConsole.Instance != null)
                 {
-                    MainConsole.Instance.Commands.AddCommand("grid", true,
+                    MainConsole.Instance.Commands.AddCommand("Regions", true,
                             "show region",
                             "show region <Region name>",
                             "Show details on a region",
                             String.Empty,
                             HandleShowRegion);
 
-                    MainConsole.Instance.Commands.AddCommand("grid", true,
+                    MainConsole.Instance.Commands.AddCommand("Regions", true,
                             "set region flags",
                             "set region flags <Region name> <flags>",
                             "Set database flags for region",
diff --git a/OpenSim/Services/LLLoginService/LLLoginService.cs b/OpenSim/Services/LLLoginService/LLLoginService.cs
index 5dff512707..0e47c5319c 100644
--- a/OpenSim/Services/LLLoginService/LLLoginService.cs
+++ b/OpenSim/Services/LLLoginService/LLLoginService.cs
@@ -889,16 +889,16 @@ namespace OpenSim.Services.LLLoginService
         private void RegisterCommands()
         {
             //MainConsole.Instance.Commands.AddCommand
-            MainConsole.Instance.Commands.AddCommand("loginservice", false, "login level",
+            MainConsole.Instance.Commands.AddCommand("Users", false, "login level",
                     "login level <level>",
                     "Set the minimum user level to log in", HandleLoginCommand);
 
-            MainConsole.Instance.Commands.AddCommand("loginservice", false, "login reset",
+            MainConsole.Instance.Commands.AddCommand("Users", false, "login reset",
                     "login reset",
                     "Reset the login level to allow all users",
                     HandleLoginCommand);
 
-            MainConsole.Instance.Commands.AddCommand("loginservice", false, "login text",
+            MainConsole.Instance.Commands.AddCommand("Users", false, "login text",
                     "login text <text>",
                     "Set the text users will see on login", HandleLoginCommand);
 
diff --git a/OpenSim/Services/UserAccountService/UserAccountService.cs b/OpenSim/Services/UserAccountService/UserAccountService.cs
index 79a7dce4da..a281b3b50e 100644
--- a/OpenSim/Services/UserAccountService/UserAccountService.cs
+++ b/OpenSim/Services/UserAccountService/UserAccountService.cs
@@ -89,17 +89,17 @@ namespace OpenSim.Services.UserAccountService
             if (m_RootInstance == null && MainConsole.Instance != null)
             {
                 m_RootInstance = this;
-                MainConsole.Instance.Commands.AddCommand("UserService", false,
+                MainConsole.Instance.Commands.AddCommand("Users", false,
                         "create user",
                         "create user [<first> [<last> [<pass> [<email> [<user id>]]]]]",
                         "Create a new user", HandleCreateUser);
 
-                MainConsole.Instance.Commands.AddCommand("UserService", false,
+                MainConsole.Instance.Commands.AddCommand("Users", false,
                         "reset user password",
                         "reset user password [<first> [<last> [<password>]]]",
                         "Reset a user password", HandleResetUserPassword);
 
-                MainConsole.Instance.Commands.AddCommand("UserService", false,
+                MainConsole.Instance.Commands.AddCommand("Users", false,
                         "set user level",
                         "set user level [<first> [<last> [<level>]]]",
                         "Set user level. If >= 200 and 'allow_grid_gods = true' in OpenSim.ini, "
@@ -107,7 +107,7 @@ namespace OpenSim.Services.UserAccountService
                             + "It will also affect the 'login level' command. ",
                         HandleSetUserLevel);
 
-                MainConsole.Instance.Commands.AddCommand("UserService", false,
+                MainConsole.Instance.Commands.AddCommand("Users", false,
                         "show account",
                         "show account <first> <last>",
                         "Show account details for the given user", HandleShowAccount);
diff --git a/prebuild.xml b/prebuild.xml
index 79814ac2b2..6d25323878 100644
--- a/prebuild.xml
+++ b/prebuild.xml
@@ -164,6 +164,7 @@
 
       <ReferencePath>../../../bin/</ReferencePath>
       <Reference name="System"/>
+      <Reference name="System.Core"/>
       <Reference name="System.Xml"/>
       <Reference name="System.Web"/>
       <Reference name="log4net" path="../../../bin/"/>