I'd like to suggest a new mechanic and interface buttons: flying formations. No matter how you position your ships in the deployment zone, they'll always stay side-by-side when you give the move order. What I'm proposing is for buttons to represent generic formations (like Age of Empires 2 had). Let me illustrate:
This is a 'Crescent' formation. Strongest ships in the front, weaker towards the 'points', weakest (escorts) in the middle:
However, when you send a Move order, the formation breaks:
My suggestion is the adding of new buttons to the interface, regarding formation styles (just like range priority, they're shared by control groups): if a group of ships select the 'Crescent' formation, they'll keep it if they were ordered to move. Such mechanic wouldn't impact individual move orders, though. The buttons would be on the bottom left corner.
Another formation examples:
What do you guys think?