I'm trying to swap out the stealth suit mkII's model with one from dragbody's public armor packs but I don't even know which program I need to use, let alone how to use it.

I've already got the geck installed plus FNVedit installed and working with MO2

Edit: I'm thinking i found out how in FNV edit but I'm not sure, will just copy+pasting the biped model nif from Dragbody's armor into the same slot on the stealth suit also change the textures and 1st person arm models or am I looking in the wrong area completely.