When booking through Disney online or through their My Disney Experience App, you will be able to make these Fastpass reservations. If you are staying at a Disney World resort, you will be able to make these reservations 60 days prior to check-in; if not, 30 days. Each reservation will allow you to show up at that attraction within the 1 hour window you’ve chosen, and ride with little wait. You can select 3 per person initially, and after you use all 3, you can select 1 additional option 1 at a time. After you use that, you can get 1 more, etc.