Each game has seventeen groups available to it.
All GMs can always read all posts in all groups, and can reply to them unless the thread is closed.
While characters may belong to multiple Groups, threads must be assigned to only one Group. To assign a thread to a group, use the "to group:" drop-down list at the bottom of the Message area while composing the thread's first post; to later change a thread's Group, either edit the thread's first post, or open the thread and use the "Edit Thread" menu.
GMs also have the ability to archive threads in their game. When a thread is archived, all users of RPoL can read it, and all Private Lines within that thread become public text. Archives are closed and may not be replied to.
Last updated: 14:45, Sun 16 Mar 2014.
Direct link: http://rpol.net/help/?t=help&page=gamegroups