(means you cant see them)
I have found that cirtain ways to make a spob not seen. The way to make a habitable spob not show up on the map unless you click on the system, all you have to do is put 5 (maybe 4) other uninhabited spobs in the system, it will then be shown as an empty system. You can also put a spob with black graphics and a black dot for the radar for "no" existance or complete radar failure and mirkiness. I have another idea I will post lated after I tested it.
If any others have anything to add I am writing a plug for this.