That product would have to be customized to do that, and you would likely have to set up a custom page to display the users from a particular usergroup.
Personally, I would just let the "View Site Leaders" page take care of showing the members of the desired usergroups.
edit: Alternately, you could use my usergroup legend product, and list the members of the groups in the FAQ, but then you would have to manually update the FAQ whenever there are changes made to the members of the usergroups.
Usergroup Legend with Links To FAQ [v1.3]