if a NPC is owned, allow access if ownerID matchs parcel owner or it is in the access list. option OS_NPC_OBJECT_GROUP it still needed if access is by group (this option should also work with not owned NPC) NEEDS TESTING, may prove to be a bad solution

OpenSim/Region/OptionalModules/World/NPC/NPCAvatar.cs

@@ -43,6 +43,10 @@ namespace OpenSim.Region.OptionalModules.World.NPC
     public class NPCAvatar : IClientAPI, INPC
     {
         public bool SenseAsAgent { get; set; }
+        public UUID Owner
+        {
+            get { return m_ownerID;}
+        }
 
         public delegate void ChatToNPC(
             string message, byte type, Vector3 fromPos, string fromName,