Action to change primary usergroup

Is there a action to change primary usergroup? i know there is a secondary one... but how bout primary...?

[Link14716]

Nope. I haven't made one mostly because it the secondary adds it, while any primary would change it. Besides, you can do about 99% of what you want with secondary groups.

[MajorFm.com]

Well i have set up a vip forum for vip members and if it is not the primary group, they can't seem to be able to access the vip forum... also i can't e-mail the group alone unless its the primary group