4
I too need this very much.
I just hacked the language file to change the Profession, YIM, AIM, MSNM, etc fields to whatever I wanted.
This is very crude I know,
but even after searching the forums upteen times, I could never come accross any hack that can easily add a few more fields.
The closest I can find is this:
https://xoops.org/modules/newbb/viewtopic.php?topic_id=15514&forum=7#forumpost64783
But I am not sure I should try hacking the core files.