Nekomiminya

I want to make mod to introduce my dream-faction of undead (Probably with Wraith Blood) 1) Are there any guides? 2) How to do, as selectable nation perks (best if they all are 0 cost, so I can just toy with them around): Eternal Sleep - No natural people gain Dead Rising - People gain per death shard + max effectivness slave lord (Yep, this one is like in undead from DLC, but my guess is that it's hard-coded,