1. From a web browser, go to:
https://disneyworld.disney.go.com/fastpass-plus/
(or go to disneyworld.disney.go.com , click the "My Disney Experience" menu, and select "FastPass+")
You will be asked to login.
2. Scroll through the calendar until you find the date you want to change. Click "Select" on that date and then click "Next" at the bottom of the screen.
3. On the following screen, click "Select" next to the "Change" option and then click "Next" at the bottom of the screen.
4. For the FP+ you want to change, click the "Change Experience" button
5. Click the circular radio button to the left of the Haunted Mansion. On the right side of the Haunted Mansion will be check boxes to select who you want to change to this new experience. By default everyone in your party is selected, so
uncheck the names of the people you want to leave with A&E FP+. Anyone with a check mark shown here will be changed to the new experience. You can also select a specific return time here for Haunted Mansion if the one preselected doesn't work for you. Once you have only the party members you want to change selected and you have the time you want, click the "Update" button. Then click "Close".