Was playing around with multiple ships, and found that it is rather easy to forget where I parked my Dreadnaught for clearing the really hard areas while I skip about the system in a tiny fighter. My proposed solution? A beacon part that requires only power to start it up, and displays a large symbol over the system the ship is in. Mostly for large ships that use lots of fuel, and use a scout ship.
It does have it and it's useful if I know which system cluster it's in or where it is relatively in the galaxy, but it's rather small relative to the max-size galaxies; I miiight have a mod that reduces the icon sizes but I don't think so. I end up having to park at memorable locations like the northernmost system.