How to edit RPC model?

[DiamondJack]

I want to rdit RPC model (NOT textures, geometry itself ! ) Is that possible and what exactly should I start with.

 

I couldn`t dowlnload Asset Editor for Pillars of Eternity from here http://rien-ici.com/iemod/asset_editor, because the link is dead, but I downloaded some Unity Asset Editors from the sites of other games. Is Asset Editora universal soft for different games made with Unity 3D, or is it special for every particular game?