The Manage User Groups Panel is the administration panel where you create and configure your various User Groups.
You can manage existing User Groups, create new ones or map users to a specific user group.
With Simple:Press, a User Group is a grouping of Users of your forum. By default, at installation, Simple:Press Forum creates three User Groups for you. These are Guests, Members and Moderators.
At at minimum you should always have at least two User Groups: one for Guests (not registered visitors to your site) and one for Members (registered members of your blog).