Keypad movement.

Please enable keypad movement.  Yes the key mapping will be different with hexes (6 directions) than squares (8 directions), but we can get used it.

There are several benefits with keypad movement, not least of which is getting your hand off the mouse.  

Also, you have much finer control over movement - you can actually retreat when you detect that enemy fleet.  To try that level of control with a mouse leads to instant mouse finger cramping.