We have a day we plan to park hop between Epcot and HS. I have FPP for Frozen and Mission Space. Do I need a 3rd to be used or expired before I can book in Hollywood Studios? Or once I use the Mission Space FPP (or cancel it), can I add one for HS?
No! I think some people have reported they could make it when they scanned their first one but last month I had to wait until I was in line for my second.