[GROUPSECTION] is a new token that was included in the ActiveForums 3.6 release.  This token will give you greater design flexibility for your main Forum View.

If you are using a template other than Default for your main forum view then you will need to make one change before installing. Please take a look at the attached png file that for details. Depending on your changes, you may just want to copy the entire new ForumView.txt into your template in the Template Manager for the control panel. Keep in mind, none of this is necessary if you are using the default template.