The reason for this is so you can't completely control the civilian sector. It is supposed to function with some free will, whereas if you could set every colony to stable and only one to colonise, you would have complete control over it.
Steve
That's fair, I guess. It's only really bothering me because a) I'm running 5.6 still, which doesn't have the improvements in civ logic that makes them spread colonization efforts around some, so they focus on colonies in the order they were created and b) I have a colony on Mars that is supposed to be "evacuating" but if I leave the civilians to their own devices and turn off colonist transport to the moon, they will go full blast on Mars.
Perhaps it could still be locked when under 25m, but with the option for an SM-mode override? I've tried setting the value directly in the DB but the code must update it in the UI refresh/update since it gets switched back as soon as I try to view the tab.