I am a DVC member and have reservations for November. There are 7 of us going but only 4 of us want the dining plan. We buy park tickets separately through Undercover Tourist, so none of us needs our key cards as park tickets. Is it possible to list only the 4 people wanting the plan on the reservation and not listing the others? I realize the other three people won't have room keys that way, but not a problem for us.