Hi Bonnie!
Thanks for visiting the Disney Parks Moms Panel with your question.
If you purchased your 'Magic Your Way' Walt Disney World Park Tickets online through the Walt Disney World or as part of a Magic Your Way Vacation Package, you'll have full
flexibility to make additions to your tickets during your stay.
Provided that you have at least 1 day remaining on your Park Ticket, simply visit a Guest Relations location or ticket window at any of the four parks or Guest Relations at Downtown Disney. You'll be able to add extra days to your tickets, or add on great options such as the Park Hopper, Water Parks Fun & More or No Expiration option. A Cast Member will be able to quote your pricing for the option(s) you choose based on the number of days remaining on your ticket. If you're staying at a Disney Resort Hotel, you can also make these adjustments to your ticket(s) at the Concierge Desk at your resort. Adding the Park Hopper is a great way to add some extra magic and pack in as much extra fun as possible during the last few days of your visit!
Please note that if you're using a promotional ticket, or purchased your ticket through an outside agent offering a discount, your ticket may not be eligible for add-ons. If you did not purchase your ticket directly through Disney, visit a Guest Services location with your ticket in hand to inquire.
I hope this information helps you out Bonnie!
Feel free to write me back any time if you have additional questions. I'd love to hear from you again!
Wishing you a simply Magical time at Walt Disney World!
Kirsten