I am trying to figure out how Memory Maker works. We have two families going to Disney for the first time in February. We are staying off site and currently have paper tickets. Thinking of upgrading them to plastic ones. I don't quite understand how Memory Maker works. How do they know who is linked with what account and/or which rides/dining pictures etc are on the account. We are trying to determine if we could get one and split it or if we would need to purchase two. Right now My Disney Experience is linked to my friends and I have her husband and children on my friends list. Please help.