I’ve seen groups who all use the same naming scheme for their ships so it’s easy to tell when someone else arrives on dscan.
Maybe try that?
An observant hostile player may spot it and a sneaky observant hostile player may even change the name of their ship to fit in, so it’s not foolproof but looks like a simple and often effective solution for your problem.
Op revealed an interesting idea but i dont see myself using it
It would also be interesting if there was a Long range scan button option and a short range scan button. Then most people wont have to move the sliders most of the time it seems.