Changing Registration Fields?

I want to edit the registration fields for my forum so we ask a new user who referred them. My problem is that I can't seem to find the option on the admin panel.

Any and all help is appreciated. THanks.

Users & groups>Profiles

I know how to change the profile fields, I mean when a new user registers and it asks for their email and prompts them to make a password, how can I make it so that it prompts them who referred them.

So add a new field.
https://help.forumotion.com/frequently-asked-questions-f5/personalized-profile-fields-warning-system-t11187.htm#58391
Make it obligatory for registration.

Ok, thanks Sanket. This can be marked as solved.

Since this thread appears to be solved, I will lock this thread and mark it as solved.


Sanket