Hi there, I was hoping someone would be able to tell me what files I would have to modify to, for example: change Priest of Berath's subclass spell list (the ones you get automatically on level up) with Priest of Rymrgand. Or perhaps changing some of ancient druid's subclass spells, swapping them with some other druid spell. You probably get the idea.

I'm currently reading through other posts that seem related or relevant to this but while I've done some minor playing with the files in visual studio code, I'm not really sure how many things I have to change here to get my desired result. If I've missed a very relevant past post that would tell me exactly how to do this in my searches let me know. I appreciate any assistance!

Apotheosis has a convenient GUI for this:

Small documentation on progression tables: https://gitlab.com/noqn/apotheosis/-/wikis/home#progressiontables

You can see the video here how it works:

 

Thanks you for the assistance!