I think you’re missing what I was saying. The point is that you don’t have to un-equip items in order to swap them from the hot bar into your inventory.

Let’s say you have a sword equipped in your hand. You can press Tab, drag that sword from your quick bar, hover over a different item in your inventory and when you let go of the sword it will go into the inventory slot and the item that was in your inventory slot will move to your quick bar.