There are other options which I sorely miss as well when I watch the combat....
In addition to the ability to retreat, i'd like to see a compass rose system on the combat screen where you can issue general directives by right-clicking, such as :
Target (-> strongest, -> weakest, -> non-combatants, -> specify (allows you to click on one enemy ship))
Disable (-> engines, -> weapons, -> shields, -> point defenses, -> life support, -> sensors)
Board (->capture, -> sabotage)
Retreat (-> full engine, ->full weapons, -> full defense)
Self-Destruct (->kamikaze, ->destroy ship)
Issuing general orders like this would not really be full tactical combat, but would certainly add life to the combat element of this game and make it far more interesting and enjoyable (for me at least).