Love the plugin!

I’ve spent many hours exploring the many features and hooking it into my site but there’s one thing I just can’t figure out. 

How do you link/assign users to an actual forum?

I’ve spend hours trying to figure this out and am at a loss. I realize there are usergroups, groups, forums and WP roles but how in the world to you assign a person to any of these things???  

Any help is very appreciated.

Curtis