It’s a Small World can be a great choice for your fourth FastPass+ If you plan to try to grab a fourth FastPass+ reservation the day that you’re in the park, try to plan the first three for as early in the day as possible. That way, you’ll have the best selection for the fourth choice. You’ll also be able to add more selections, one at a time. Just make sure that you use your previous selections, because you can’t grab another one if you still have unused attractions on your account.