I noticed earlier today that when I open the MyDisneyExperience app on my phone, click Explore, Attractions, Magic Kingdom, Big Thunder Mountain, it has a bar for Select FastPass+. It opens a calendar and you can select a day but I just get an error message after that. Is this button new or has it always been there and I just missed it? I would love to be able to schedule FastPass+ for my trip next week!!!!