PSA Registry question
 

How do I transfer a basic set to a master set. I’ve decided to do the master, but trying to avoid rescanning everything

Have you tried to just "Start the Set" and then in the Edit Screen do the "Add Best Available" button? I know that will work to add the cards/grades, as well as images for any cards where PSA has images on file. I am not sure if it will also import images you have taken, as I have not done any for my registry sets.

I figured it out. Just highlighted the cards and clicked start set. Then I picked the one. But it didn’t transfer. On my app it let me do it one at a time. It was weird