Oh! Good to know that before I start, thanks!
Is it possible to eliminate the population or something? I would mind, since I already did it in-game and saved all the families to the library. I could just put them back afterwards. I will do some research when I have time, maybe I will find some way of uploading it populated. I've heard there's a mod to do that (I think that's what they used to make UC? But maybe it wasn't LOL) but I'm not sure.