Oh, one other thing... make sure you've added the names to the reservation via member services before you check in. (Hope you haven't done an online check-in yet.) I tried to add my parents to our studio at BCV last time we were there for the same reason. It was our last day in Florida and their first. We were going to spend the morning together at SAB. It would have worked, except that I didn't think about it early enough. I went down to the desk the morning after we'd checked in to add their names to the room, and was told I couldn't add a guest to a
DVC room after we'd already checked in.