Only certain items in the GUI

when you create a slot, before placing it you have a menu to configure it. in the plave where it says "limis stack item to" (or something like that", there shoudld be an empty box. Click on that box and select an item/block. Then, that slot will only be able to have that item/block in it. If you want to only have a limited ammount of items, like maximun of 10 items, i think that there's a way, but i dont know how.