The View Permissions section, accessible via Channel Management > View Permissions, allows you to view what permissions a specific usergroup will have in a forum. This allows you to check that you have setup your forum-permission structure correctly.
Use the Channel and Usergroup dropdown menus to view the channel and usergroup for which you’d like to view permissions. Next, check the specific permissions you want to view with the search result. If you’re unsure which wants you want to see, check the Check All checkbox to the left of the Forum Permissions header.
When you’re done, scroll to the bottom of the page and click the Find button. This will reload the page with the search results that matches the criteria you searched for.
This displays what each permission you selected is set to. In this example, the Administrators group has full permissions in the Main Forum.