I'm not sure that I understand your question clearly.
First off (unless I wrong) since you need to port into your Zaby, basic members can't visit since they can't port, if that is who you want to bar entry no problem. Second the house rules can be set so only selected friends can enter. There are other threads on doing that.
The thing to remember is that people can port into the region which is where you port in at, OR
they can choose to port in on your avatar which will be where you are standing
and not the location that you port in at. So a barrier
isn't needed nor would work.
The Fairy of the Wind
Bids You Wclcome
Does anyone know where to put the postage stamp on those eMAIL thingies?