Thanks Father Tim, much appreciated. Now I'm confronted to a new and unexpected problem, In SM mode, when I create a new NPR empire in the System Information screen, I have not access to it. I would like to edit whatever I want, including adding new colonies and some race details (like the flag, xenophobia, or in the Economics screen using the SM Mod button to edit manually facilities), but I don't see where I'm supposed to switch to their view, given the dropdown box don't propose NPR races, only player races. That's a mystery and yet Steve and others have run AARs, so there is a solution!
Additional question, how do I edit the atmosphere of a planet so it is suitable, in SM mode (again, to add Human NPR colonies).
Can you help please? You or another good samaritan, I'm not picky