ManagementAdmin Panel - Group Admin - Management
This is the place to set up groups.
First off you will be taken to the create group page, after that it is really quite easy, just fill out the page as you wish.
Please remember that once you have set up a group you will then have to invite members to join it.
You can invite members by clicking on the usergroups link normally found at the top of the forum.
Click on this link then click on add member you can also set up a private area for only these members just remember to allow them access. (This is explained in User Admin--Permissions )