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

@@ -232,6 +232,12 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         public bool AllowAvatarCrossing { get; set; }
 
+        /// <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;
 
@@ -1131,6 +1137,7 @@ 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

@@ -473,7 +473,8 @@ namespace OpenSim.Region.Framework.Scenes
                     if (
                         !Scene.PositionIsInCurrentRegion(val)
                                 && !IsAttachmentCheckFull()
-                                && (!Scene.LoadingPrims)
+                                && (!Scene.LoadingPrims) 
+                                && !Scene.DisableObjectTransfer
                         )
                     {
                         IEntityTransferModule entityTransfer = m_scene.RequestModuleInterface<IEntityTransferModule>();

bin/OpenSimDefaults.ini

@@ -775,6 +775,10 @@
     ; 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