Navigate to the Control Panel > Communications Tab > Website Modules > Discussion Forums.
Find the Forum to which you want to add the moderator and click the Members icon in the Maintain Column.
You can use the Add Moderator button to choose a member from your database to moderate the forum, or assign an existing member as the moderator.
If you assign a moderator to a forum who isn't already a member of the forum, they'll be added as a member to the forum. The member will not be added to any group the forum might be based on, like a committee or interest.
Assigning a Forum Member as a Moderator
Search for the member you want to make a moderator.
If your forum has a lot of members (like an all-members forum), we don't recommend clicking Show All Members and running a search, as it may take a while to return results. Search for the member individually instead.
Click the Edit icon in the Maintain Column for the member.
Click the box Moderator to make the member a moderator.
Click Save to save your changes. Remember, forum changes may take several minutes to update.