15 hours ago, khzmusik said:
As Arramus said, you need to change this in whatever NPC Packs you have installed. At this point those are mostly from Darkstar Dragon. His packs use the same probabilities for all biome spawning, so you can just do a search-and-replace using a text editor.
The NPC Core characters spawning (Nurse, Baker, and Harley) spawn at much lower rates than Darkstar Dragon's NPCs, so they might not be a problem. But if they are - then you only need to change the probabilities for the biome spawn groups.
There are a lot of groups that are used only for sleeper volumes in NPC POIs - those start at line 126 (as of this writing). You don't need to do anything with those. (DD's packs don't spawn into those volumes, for whatever reason, so you don't have to worry about it with his packs.)
Yes, replace all for changing values is the quickest and easiest way to bulk edit the spawning Kogg.