Probably a stupid question. I'm trying to play with 3 different empires in one game, and one of the empires has a large number of civilian freighters travelling between Earth and Europa. The other two empires keep picking the freighters up on passive scanners as hostile contacts every time one of them leaves or returns to Earth which occurs daily. Right now all 3 empires are doing research or refitting ships etc. . and will be "busy" for the next 5 to 6 months, but when pressing the 30 day increment the game advances a few hours to a day each time.
Is there a way to have the game ignore civilian freighters from hostile empires so that it doesn't take an hour in real time to advance the game a month in game time?
Hope that makes sense to someone.
Thanks