#broadcast
  displays current settings
#broadcast enable|disable
  enabling or disabling broadcasting (default is disabled)
#broadcast filterip|filterport on|off
  sets/resets filtering incoming packets (same-IP, same-Port)
#broadcast port <portnum>
  sets udp-port for listening broadcast messages
#broadcast send <data>
  sends text to all JMC instances running on the current 
  machine or in current local network and using same port 
  number (see "Options -> Common -> Broadcast messaging")
