Commanders press the m key and draw lines on the map, anyone who presses the M key can see said directions.
I liked drawing. Atleast you can add that to the list of features Empiresmod would be capable of. "You can now DRAW DICKS in EMPIRESMOD, all the MASSIVE BATTLES between POORLY DRAWN MALE POPSTICLES."
Reminds me of summer league where someone setup a drawboard with a chat somewhere and immediately everyone started drawing dicks on cyclopean.
That drawing code is no longer in. I'd imagine that the next version of that would just be on a HTML5 canvas that sends draw inputs via a web socket to the server, which distributes it to the clients or something. But we have a few other ideas regarding commander interaction