Puntuado con 2 de 5 estrellas
You are completely mad to ask to sign in to save one's personas. That is inadmissible!
Therefore, you should add a Menu Option called "My Favorites" where the personas the user has added are saved. And you must connect this folder with a folde on one's hard drive to save these personas.
And you must allow the user to shuffle his personas of his "My Favorites" menu option.