Feature question: Can this effect what races appear near you or or their frequency?

Is it possible to affect haven generation?
I'm guessing they're tied to climate and mountains, which could use their own setting (along with saltwater oceans/freshwater lakes).

The mod's very helpful as-is, though! I think the river settings in particular made it much easier for me to find a location with over 100% of all resources + ocean, river, mountain, and forest.

Thanks for this.

A very useful mod! May I ask the author, can the regions generation system in the editor be customized? My needs might be a bit too extensive... The randomly generated regions in the original SOS are quite simplistic, and it seems unable to specify details like the number or size of generated regions. There are also issues with layer display. Can these mechanisms be modified?