I tried to search for this topic but nothing came up relevant.
Two ideas that may be worth exploring if not yet considered.
Is it possible to add a feature so you can adjust the game speed while you are playing the game? Would help if you are in a large scale battle to slow down time or speed up time when nothing major is going on.
Also a way to deconstruct or remove a built structure?
I find it when my empire exands, I do not need as many orbitals or like to reposition them.