A one click option to mark yourself as AFK and display it on your screen name would be extremely handy. In addition, some indication that a player has gone idle which will eventually set the player AFK if there is absolutely no action on their end. Nothing bogs a game down more than waiting on a player whose turn it is, only to discover much later after much waiting that they were in another window, or off to use the restroom. This will greatly improve efficiency.
