Discussion Forums are displayed on your website in categories. When you create a new forum, you assign it to a category.
Navigate to the Control Panel > Communications Tab > Website Modules > Discussion Forums.
Click Configure - Forum Categories.
Click the Add Category button to add a new category.
Enter the name and description of the category; both will be visible to website visitors viewing forums.
Check the Active box to activate the category and allow forums to be added to it. In the future, you can return to the category screen to deactivate an entire category if the forums are no longer active.
You can't delete a category if it's being used to define a forum.
Click the Display Sequence icon to change the order of the categories or the forums in each category.