[ClaudeS]

How would the members name appears? For 15 years, my forums have been username only based, without real names so want to know if this only shows their Facebook profile name for example, or whether there are options to change t

You have to open the file oneallsociallogin/include/toolbox.php

Then you comment this line:

$data ['user_login'] = $data ['user_full_name'];

This will create users with their username from the social network only. Please note that in some social networks (i.e. Facebook) the user's username is usually equal to the first/lastname. So despite the change there might be usernames with a first/lastname in it.