Apple Remote Access MultiPort Server - Manual (Page 38)

If you want to limit zone access, select Only Zones Listed or All Zones
Except Listed.
If you choose Only Zones Listed or All Zones Except Listed, a dialog box
appears from which you select which zones will appear on the user’s Zone List.
The zone in which the server computer is located appears in italics.
38 Chapter 3 / Setting Up the Server