Auto-Asteroid, please...!
You know how colony ships can Auto-Colonize, seeking out an available planet all on their own...?
I'd like something similar for asteroid miners.
Sometimes, an asteroid cluster is small or blends in with the background, or something, and finding it again is a giant PITA; it'd be great to be able to tell your asteroid miners to go seek out the nearest asteroids within your ZOC.
(And, while we're on the topic, it'd be great if the miners and colony ships could check whether its about to head toward a target which is already headed toward by another ship. Cuz otherwise, my colony ships are all headed to exactly the same place and bypassing completely available worlds, making the entire process inefficient at best, extremely vulnerable to repeated attack by enemy forces, at worst.)