1. Show ship damage directly in the ship/fleet window at the lower left. Right now you have to hover with the mouse over every single ship of a fleet to see which one is damaged and how much ...
2. I would find it very nice if ships in nebulae could not be so easily spotted by sensors than when in free space. That would make it possible to lay ambushes in nebulae. It would also be nice if you could not only set nebula frequency, but also nebula size in the galaxy setup window.