FP+ Advanced Options

Hey Guys,
Just went to evaluate one of my plans and I noticed there is a new feature for FP+ under the advanced options. It is called “Change the number of FastPass+ reservations you expect to use” . There is a drop down box to select a number from 0 and up. just wondering what this feature does.

tks

If allows the software to look for more fast passes than your initial 3. After you use your pre-booked FP’s you can use your phone to book more. If you feel confident you’ll be able to get more you can use this to force the software to use 4+, however, there really are no guarantees and it’s probably best to stick to 3.