usergroup changed hook?
 

Is there a hook that is called when a user's usergroup is changed?

I remember there being a nice list of hooks with their descriptions but I can't seem to find it.

Also a misc question, how do you go about adding an option to the usercp?

Did you find anything about this?
Regards.

The easiest way to add an option in the usercp is using custom profile fields

Thank Scanu but how?

I need do something when any user has changed to "moderator" usergroup and I think that using hooks is easiest.
Regards.