So how do I get Pokemon to spawn, by themselves, in a given game session? Am I right in assuming that whenever I enter a session the location I'm at spawns biome-specific Pokemon (the amount written in the cfg file)? So if I wanted to spawn in new Pokemon, the other Pokemon need to despawn (i.e. I have to get some distance to them) before new ones can spawn? But already existing spawns can't be "overwritten" by another spawn, until it despawns?
If so, what is the block distance I have to have in order to despawn the already spawned Pokemon? Or can I just stand around in biome X and wait around for new Pokemon to spawn?
I couldn't find anything about this in the wiki(s), so it would be much appreciated if I could get an answer to this.