This is a new feature in version 163-3. Certain chat messages prefixed with a double slash are now interpreted as commands that can be executed by the racetrack’s creator. The following commands allow viewing or modifying the current racetrack’s settings and adding or removing bots.
//addbot <wpm1> <wpm2> <wpm3>
Adds one or more bots. Can specify multiple speeds, each speed adds a bot.
//addbots <number> <avgWpm?>
Adds number of bots with the given average speed. The speed parameter is optional; if omitted, it defaults to the average speed for the track creator’s skill level.
Remove all bots.
//set maxPlayers <2-25>
View or set the maximum players allowed in the current racetrack (which includes both racers and spectators). Note: if the numeric parameter is omitted for any //set command, it will simply print the current setting without modifying it.
//set maxPlayersPerGame <2-25>
Set the maximum players allowed to join in a race.
Prints info about how to use the most common commands. For now, only the //set commands are documented there.