I have a related question. Let's say you are a DVC member and you are going to WDW. You have also arranged for members of your extended family to come along and have their own rooms. Obviously, as the DVC owner, you are listed on the extended family's room. Can you link your card to your DVC room, but have them link their cards and magic bands separately to their own rooms.
I probably should have posted this on the DVC Board, but I saw this thread and thought of it.