How to port kh2 animations to FitIkeMotionEtc.pac file?

[GodBarrierDjinn]

So I download this animated Antiform Sora fbx file from models resource and want to know what I need to do to import these animations to my FitIkeMotionEtc.pac CHR0 files?

https://www.models-resource.com/playstation_2/kingdomhearts2finalmixjpn/model/13593/



Am I suppose to use the Brawlbox 3ds max animation exporter script? Don't know what to do with it .

I also need to know how to mirror the animations.