Create A Forum - Support Forums

Hmmm... so you want them to be added to a group upon registration?  Well, you could make those boards be only accessible by members of that group and then you make a EzBlock only visible to ungrouped regular members that shows up on the center of all pages.  Then you make the membergroups "Free" so they can join or leave them at will (though they'd be able to join multiple I think).  Then that's about it.