Reset first row in a 1 row model (Calendar)

Questions
5

I think that it may be easy to just show with a video: http://youtu.be/zxMNlWTv4nA?hd=1

Ideally, I would put some sort of action on closing the popup that would
1. Clear out the first row from the parent page model (protoAppt)
2. Requery the parent page