On the overhead ('view offset', or 'F1') view, Left-click to center, Left-click within X of current center to re-center and zoom appreciably, Right-click to zoom out.
Hotkey to display LRS of targeted vessel.
LRS of planets to provide flavor text.
Option to rename vessel, at least when buying a new hull.
Frangible Asteroids.
Speculative commerce. Buy a good, fly to another system, and hope to sell it for a profit.
Option to extort goods (cargo, or even non-critical components) from outclassed or defeated vessels. Similar option for impressing Crew into service. Surplus 'crew' units as cargo and trade goods.
Re: Some feature requests...
Threaded Mode