new hotbar features

currently its extremely hard to manage your hotbar in survival minecraft and bundles don't make things much better when it comes to hotbar management. I believe that these three new additions will greatly improve hotbar management.

feature 1 "top up stack"

on your keyboard you would be able to press a button to fill up whatever item is currently being held to a full stack and if you were holding a tool the tool would be replaced with the highest durability version of that tool in your inventory. it would also work through shulkers and bundles

feature 2 pick block out of bundles and shulkers

pick block should take items from a bundle or a shulker if the item isn't in your inventory 

feature 3 swap key

when the swap key is pressed the item will be swapped with whatever item is directly above that item. in addition an optional swap indicator setting will display the item that would be swapped to if the swap key was pressed either beside the hot bar or in the corner of the item slot