This commands decreases the maximum running speed of all clients. The default value is 320.

'''Parameters:'''
 * 1: float factor - the factor by which to slow down the running

'''Reports:'''
 * ''done'' when the task completes.

'''Example:'''
 * User sends: "sm 512 2"
 * Director replies: "cp sm 512 done"
 * Server: g_speed changed to 160.000000