Hey there, Heather!
Thanks for stopping by the Disney Parks Moms Panel with your questions. I'd be happy to help you with planning your future Disneyland Resort vacations.
While each
Disneyland app account is registered to only one user, you are always welcome to link friends and family members' tickets to your account. In your case it sounds like your account has you and your husband's tickets linked which is great. You will not need to add his name to your account for any reason. When it comes to dining reservations made by you that you are not attending, you will just need to call the resort directly to edit your reservation. You can call
Disneyland Dining at (714) 781-3463 to have his name put on the reservation you made via the Disneyland app. Have your reservation number handy and make sure he also has it when he arrives just in case.
Since it sounds like you are pretty familiar with using the Disneyland app, I just wanted to let you know about my favorite feature: mobile food ordering! This has saved us so much time in the parks since it can be used at almost all Quick Service restaurants in both Disneyland Park and Disney California Adventure Park to skip the line when ordering.
I hope this helps, and please return if you have any other questions. Have a Zip-a-Dee-Doo-Dah day!
-Jennifer