An ability to mass assign civilian economy orders to several colonies at once.
For example, I just finished surveying a new system's asteroid belt and I want my civilian transports to ship a mass driver and 10 automated mines to each asteroid colony. As of the latest patch, I must select each colony one by one, add each installation type individually, and input the desired amount of installations for every single asteroid/comet. For sizeable systems the amount of colonies can get into hundreds.
Also, perhaps, make the dropdowns in the civilian economy menu remember the last installation selection when a different colony is selected?
Edit: A button to flag all installations currently at the colony as available for pick up by the civilians would also be nice. For examplem when the asteroid from the example above has been strip mined, I will just have to click that button for those installations to be picked up and utilized elsewhere.