finding out what makes a dorf right or left-handed... Maybe...?

[Moonwarden64]

So using the gm/editor command I found in the "body" section a line called "Weapon_bp" which is either numbered 8 or 9. I remember looking before and finding out that the 8th and 9th body parts are right and left hand respectively. Would changing theses numbers be a way to make a specific dwarf right or left-handed? (Wanting to stablish my left-handed new dwarf world order)

[Moonwarden64]

Or better yet, could this be used to make lets say a creature that grasp their weapons with their mouth or feet?
Like Sif from Dark Souls 1.

[rome of oxtrot]

body part numbers depend on the creature raw specification, and can change each time the world is generated. you can't rely on body part being 8 being the right hand

the game currently has no way to specify a weapon as being wielded in only one hand or the other

it is possible to mod a creature so it can grasp weapons in its feet or mouth, but doing this might have unexpected effects for intelligent creatures, such as attempting to equip a glove on the part in question