Select "Add to waiting-room" on the "game-players"-page of your multi-player-game:

• Specify how many user-slots you wish to offer in the waiting-room.
  
• If you want, specify some game-settings for: rating-range, number of rated finished games and a waiting-room comment.
  
• After submitting your game-offer, a waiting-room entry is added.
  On the 'Info'-page and in the Settings-column in the waiting-room, a link to the corresponding "game-players"-page is shown to enable the users to find out the current setup and groups of your MP-game.
  

When a user matches the game-offer criteria, the user can join the offer and will automatically take one of the free reserved waiting-room-slot in your MP-game.
The game-master will be informed about a joined user with a notification message.
 
To delete or replace the MP-game offer in the waiting-room, an existing MP-game-offer has to be either deleted or be fulfilled (by users joining it) first.

• Only one waiting-room offer can be created at one time restricted to one set of game-offer-settings.
  
• The waiting-room entry can be deleted at any time. All non-taken reserved waiting-room-slots on the "game-players"-page are freed with this.
  
• The corresponding entry in the waiting-room can be easily found by the game-master via the "game-players"-page clicking on the bottom-link "Add to waiting-room". If there's an existing entry a link to it will be shown.