For the space station:
There should be a feature, if you right click the blue thing in your space station, it comes up a GUI that you can choose who should be able to come to your Space station and maybe you could add more options there for example if you don't want to own the station anymore, you can give someone that hasn't made a Space station yet. Or, you could make "permission's" in your Station for people if you want someone to just visit or something for example pre-made permissions there like: Visitor (Can't build on the Space station) Helper (Can build but can't break the block's that the Station owner placed)
More idea's coming soon!
There should be a feature, if you right click the blue thing in your space station, it comes up a GUI that you can choose who should be able to come to your Space station and maybe you could add more options there for example if you don't want to own the station anymore, you can give someone that hasn't made a Space station yet. Or, you could make "permission's" in your Station for people if you want someone to just visit or something for example pre-made permissions there like: Visitor (Can't build on the Space station) Helper (Can build but can't break the block's that the Station owner placed)
More idea's coming soon!