diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs
index 4a8e885c59..1a3de1e708 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs
@@ -336,11 +336,15 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         public const int ROTATE = 32;
         public const int SCALE = 64;
         public const int ALL_SIDES = -1;
+
+        // LINK flags
         public const int LINK_SET = -1;
+        public const int LINK_TRUEROOT = 0; // possible this should had been ROOT all the time
         public const int LINK_ROOT = 1;
         public const int LINK_ALL_OTHERS = -2;
         public const int LINK_ALL_CHILDREN = -3;
         public const int LINK_THIS = -4;
+
         public const int CHANGED_INVENTORY = 1;
         public const int CHANGED_COLOR = 2;
         public const int CHANGED_SHAPE = 4;
@@ -356,6 +360,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         public const int CHANGED_MEDIA = 2048;
         public const int CHANGED_ANIMATION = 16384;
         public const int CHANGED_POSITION = 32768;
+
         public const int TYPE_INVALID = 0;
         public const int TYPE_INTEGER = 1;
         public const int TYPE_FLOAT = 2;
@@ -389,6 +394,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         public const int CONTENT_TYPE_FORM = 7; //application/x-www-form-urlencoded
         public const int CONTENT_TYPE_RSS = 8; //application/rss+xml
 
+        //parameters comand flags
         public const int PRIM_MATERIAL = 2;
         public const int PRIM_PHYSICS = 3;
         public const int PRIM_TEMP_ON_REZ = 4;
@@ -397,19 +403,22 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         public const int PRIM_SIZE = 7;
         public const int PRIM_ROTATION = 8;
         public const int PRIM_TYPE = 9;
+        // gap 10-16
         public const int PRIM_TEXTURE = 17;
         public const int PRIM_COLOR = 18;
         public const int PRIM_BUMP_SHINY = 19;
         public const int PRIM_FULLBRIGHT = 20;
         public const int PRIM_FLEXIBLE = 21;
         public const int PRIM_TEXGEN = 22;
-        public const int PRIM_CAST_SHADOWS = 24; // Not implemented, here for completeness sake
         public const int PRIM_POINT_LIGHT = 23; // Huh?
+        public const int PRIM_CAST_SHADOWS = 24; // Not implemented, here for completeness sake
         public const int PRIM_GLOW = 25;
         public const int PRIM_TEXT = 26;
         public const int PRIM_NAME = 27;
         public const int PRIM_DESC = 28;
         public const int PRIM_ROT_LOCAL = 29;
+        public const int PRIM_PHYSICS_SHAPE_TYPE = 30;
+        public const int PRIM_PHYSICS_MATERIAL = 31; // aparently not SL
         public const int PRIM_OMEGA = 32;
         public const int PRIM_POS_LOCAL = 33;
         public const int PRIM_LINK_TARGET = 34;
@@ -417,6 +426,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         public const int PRIM_SPECULAR = 36;
         public const int PRIM_NORMAL = 37;
         public const int PRIM_ALPHA_MODE = 38;
+        public const int PRIM_ALLOW_UNSIT = 39; // experiences related. Unsuport
+        public const int PRIM_SCRIPTED_SIT_ONLY = 40; // experiences related. Unsuport
+        public const int PRIM_SIT_TARGET = 40;
+
+
+        // parameters
         public const int PRIM_TEXGEN_DEFAULT = 0;
         public const int PRIM_TEXGEN_PLANAR = 1;
 
@@ -473,6 +488,10 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         public const int PRIM_SCULPT_FLAG_INVERT = 64;
         public const int PRIM_SCULPT_FLAG_MIRROR = 128;
 
+        public const int PRIM_PHYSICS_SHAPE_PRIM = 0;
+        public const int PRIM_PHYSICS_SHAPE_NONE = 1;
+        public const int PRIM_PHYSICS_SHAPE_CONVEX = 2;
+
         public const int PROFILE_NONE = 0;
         public const int PROFILE_SCRIPT_MEMORY = 1;
 
@@ -701,12 +720,6 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         public const int PRIM_MEDIA_PERM_GROUP = 2;
         public const int PRIM_MEDIA_PERM_ANYONE = 4;
 
-        public const int PRIM_PHYSICS_SHAPE_TYPE = 30;
-        public const int PRIM_PHYSICS_SHAPE_PRIM = 0;
-        public const int PRIM_PHYSICS_SHAPE_CONVEX = 2;
-        public const int PRIM_PHYSICS_SHAPE_NONE = 1;
-
-        public const int PRIM_PHYSICS_MATERIAL = 31;
         public const int DENSITY = 1;
         public const int FRICTION = 2;
         public const int RESTITUTION = 4;