Hello
As you might already know from MODIFYING COMBAT ARTS AND UNDERSTANDING FLAGS - SPELLS.TXT, I'm working on an inquisitor mod. Currently I'm working on modding a shapeshift CA like DM dragon berserk. I already found out about how entry0 = {"et_self_shapeshift", 1000, 1995, 0, 41 } works and where to look in creatures.txt and itemtype.txt, e.g. for the mentioned dragon berserk, it says in itemtype.txt
-- 3d model + animation info
model0Data = {
name = "models/npc/monsters/draconian/h_draconian.GR2",
user = "WEARGROUP_INVALID",
},