When using SM to create a system, is there any way to control it's distance (LY) to other systems? What determines the new system's position - is it at a random position, or added on to the end of the list at the edge of the map, or what?
I'm imagining a two or three PR playthrough where the PRs start at 25-50 LY spacing so they will not bump into each other for some time, without me knowing in advance exactly how many jumps apart they are.
Would the best way to create two PRs at some spacing be to just SM explore out along a random chain until I am 'far enough', create the new race, and then SM 'unexplore' (?delete the exploring race), and just wait a bit until I forget the chain? I suppose this method still has some suspense, because my random path between them may not have been the only one, or the shortest one.