New config var: DisableObjectTransfer. If set to True, objects never cross; instead they stay in the region, possibly placed outside its borders.

OpenSim/Region/Framework/Scenes/Scene.cs

@@ -250,6 +250,12 @@ namespace OpenSim.Region.Framework.Scenes
         /// 
         public int m_linksetPhysCapacity = 0;
 
+        /// <summary>
+        /// When placed outside the region's border, do we transfer the objects or
+        /// do we keep simulating them here?
+        /// </summary>
+        public bool DisableObjectTransfer { get; set; }
+
         public bool m_useFlySlow;
         public bool m_useTrashOnDelete = true;
 
@@ -1155,6 +1161,7 @@ namespace OpenSim.Region.Framework.Scenes
             if (entityTransferConfig != null)
             {
                 AllowAvatarCrossing = entityTransferConfig.GetBoolean("AllowAvatarCrossing", AllowAvatarCrossing);
+                DisableObjectTransfer = entityTransferConfig.GetBoolean("DisableObjectTransfer", false);
             }
 
             #region Interest Management

OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs

@@ -556,6 +556,7 @@ namespace OpenSim.Region.Framework.Scenes
                         && !Scene.PositionIsInCurrentRegion(val)
                         && !IsAttachmentCheckFull()
                         && !Scene.LoadingPrims
+                        && !Scene.DisableObjectTransfer
                     )
                 {
                     if (!inTransit)

bin/OpenSimDefaults.ini

@@ -800,6 +800,10 @@
     ; Allow avatars to cross into and out of the region.
     AllowAvatarCrossing = true
 
+	; This disables border transfers for objects. When true, objects can be placed outside
+	; the region's border without being transferred to another simulator. 
+	DisableObjectTransfer = false
+
     ; Minimum user level required for HyperGrid teleports
     LevelHGTeleport = 0