Does anyone know, how one can change the column which is shown in the “Preview as” dropdown list?
In my case, the column 6 is used, which is the column Firstname.
Therefore, I get many duplicates in the list which is not very helpful.

Does anyone know, how one can change the column which is shown in the “Preview as” dropdown list?
In my case, the column 6 is used, which is the column Firstname.
Therefore, I get many duplicates in the list which is not very helpful.

I believe it uses whichever columns are mapped to Email, Name & Role respectively in your User Profiles configuration.

I don’t know where I can find the User Profiles configuration, I have a Pro App with email sign-in
Click on hamburger Menu ☰ > Click on name or avatar > in the right side you’ll se a Source field: choose your “user” sheet, where it will receive every email after sign in.
@Lucas_Pires , @Jeff_Hager thank you for the hint, somehow I never clicked there.
@christoph it is missed by many!