The 30 day window has just opened up so I'm now trying to book my fast passes but it's only letting me book one at a time. I know there are restrictions in some areas, such as Toy Story Land, but I thought in general you could book up to 3 in one day in advance. Am I missing something or can anyone explain? This is my first time booking them in advance. For info, I'm attempting to book Soarin' and Test Track.