Just a thought I had earlier, it'd be pretty awesome to be able send in battle signals, both because I often struggle for time to type in battle, and because it quite closely follows practice in the period.
Basically, the idea would be a few select signals ('form column to stern'/'engage the enemy more closely'/'disengage'/others as appropriate) that a designated fleet commander could hotkey and send to all the fleet in a battle. I feel it might lead to an increase in tactics (rather than sprawling battles), and also help the accuracy. Thoughts?