Shared user QRcode

Hi everyone. I’m trying to setup my partner as a shared user and sent her an invite, but when she tries to setup she is asked to scan the QR code. I won’t go into details but in my specific installation some adhesive was required so the QR code is probably no longer accessible. So I have a couple of questions: Firstly, to solve our problem, are we doing it right and does it ask every shared user to scan the QR code? Is the code available in the app anywhere? Secondly, if that is right, should it really ask for this for every user? It seems odd that if you need to change (new people move in etc) you can’t add a user without unmounting the doorbell. Should this be a feature request?