Hi Tim! Your vacation with your family and sister sounds absolutely magical! I love how proactive you are being with your planning! Great news! You can select different
FastPass+ attractions!
Do exactly as you have planned and have everyone set up their individual
My Disney Experience account and link their vacation package (Disney Resort hotel reservations and/or theme park tickets). Then, add each other to your Family & Friends list. Your accounts will be ready to make FastPass+ selections!
Guests staying at a Walt Disney World Resort hotel can make FastPass+ selections up to 60 days prior to check-in and all Guests can make selections up to 30 days in advance of their visit.
When you are ready to make your FastPass+ selections, I would suggest having a tentative itinerary written down in front of you. Make the selections for each member in the traveling party and then go back and review or make any changes if needed. If possible, you might also want to have someone else with you making the other group's selections so you can do them simultaneously to ensure your plans match up as needed. Initially, you can make 3 FastPass+ selections in one theme park per day. Once you have redeemed your selections, you can begin making 1 selection at a time throughout the day. You can even make selections at a different theme park. It's a great way to maximize your day and schedule your must do attractions! When you are in the theme parks, you can either use your My Disney Experience mobile app or visit a FastPass+ Kiosk to select or make changes to your FastPass+ selections.
Thanks so much for sharing your question with the Disney Parks Moms Panel. Please let me know if you need any other tips or advice as you plan your magical Walt Disney World Resort vacation!