Can I move a user from one group to another, using replace or something like that?

My hierachy looks like this

registered
+-member
..+-commitee

I would like to both remove member and commitee, and move them to registered if they leave the club.

And if a new person joins, I would like to move them from registered to commitee.

The member status is reflected in a field called cb_type, so I would create a usergroup action, that checked if var4_cb_type was not equal to cb_type, and then I see a challenge.
Because as I can see it I can not do 'or' in my conditionals, so I need to create a seperate action for each case.
Furthermore I can't see how to remove a lot of groups, and add 1 if they leave the club,so I need to create duplicate for that as well.

That's going to end up in a lot of actions I think?

Ok, so I guess I figured it out, the replace action will replace all groups with the selected. So that makes it a bit easier for me.