Backpack Weapons?

Backpack Weapons?

I've noticed that if you carry a sword and a bow at the same time, when you shoot your bow, the sword will appear on your back for a split second. I'm wondering... is it possible to make this a permanent feature for all weapons? So that you'll always carry your weapons on your back, until you're in combat (which is when you'll hold your weapons in your hand, obviously.) This would be a pretty awesome feature. If anyone would be able to explain how to do this, please do. I'll definitely make it into a mod if I can find out how

 

Attatched a screenshot to show what I'm talking about.

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