additional checks or unchecks for userprofile in admin options/permiss

Hi There,

I would like it if the admin would be able to choose if forum users can add their yahoo, MSN, accounts etc. in their profile. Is there a possibility that you will add this function into the permissions so that admin can check or uncheck these options?
Or is there a way I can do this myself?

Thanks in advance.

FYI. I don't have PHP knowledge.:-(