Question Integration of Player Selection with Registration

I need to integrate Player Selection to Registration in Unity. I see plenty of examples of how to create the login registration, and I see plenty of examples how to create the character selection.

But I do not see any examples to add the select character to the registration/authentication so when logging in the registered character for that account is loaded. I would really appreciate any tutorial to show how to do that properly.

I have included a visual example what I am trying to achieve by way of the UI

 

I don't think the answer has changed since you asked this question... wow, last year. You're still on this problem?

Take the knowledge from both, and combine them. There's not going to be a tutorial to handhold you through this.

 

Not a valid question. (again)
https://unity.com/learn