Advanced Autocrafting, NEED HELP

[Bayoumyyyy]

heyy im not asking for an autoclicker with a shift key on hold. I know what im about to ask if very kinda hard but pls if you feel like you can do it give it a try! First things first i play windowed mincraft (just for the coords). Now what im asking you is to create a script that takes the stack of items in my 9th slot and place it equally in the 2*2 crafting (so 16 in each slot), then hover over the item and shift click it.
Then repeat the exact same thing, take items in slot 9, craft them equally then shift click. Please if you need any other information from my side, im very cooperative!