You can move dropping it on ground and moving into bar, then move from bar in “SOME” not all storage (e.g. Elephant). By the way …when you drop down an ITEM it can be one other from your inventory 
IT’S A MESS!
… more … if you put some items in your inventory using above tip…you risk to be overcumbered even if not full…and sometimes items are “hidden” (you cannot see them in your inventory)