Very cool to see Domino automatically creating additional nested groups when populating a large dynamic group 
One small change I wouldn’t mind seeing is a design change to the Group form to make the members field on the child groups non-editable (perhaps with a doclink back to the parent group)
Thanks
*EDIT - actually, ignore that - for some reason the beta 2 templates never got installed, so I was still working with the Beta 1 address book design. A doc-link would still be nice, however