>>348049236
Meant 
>grab button picks up item in-game, manually need to move item with your hand over your should to "stash" it
Is handled by VRIK. You can do things like bring potions and such to your mouth to quaf them too. In my current playthrough I have holsters for potions set up like a brace of pistols across my chest, so I can just snag one in the middle of a fight and chug it with my left hand while my right shoots fire.