How to unlock slot in inventory

How to unlock slot in inventory minecraft inventory slot png This will pull up a window with your inventory with two open slots above that The first slot is for the item you wish to enchant and the second is for lapis minecraft elytra slot This will pull up a window with your inventory with two open slots above that The first slot is for the item you wish to enchant and the second is for lapis

minecraft elytra slot a png by me! pls dont take credit 3 original image here: comimgres?imgurl=h… Image size 633x633px KB

minecraft slot machine This will pull up a window with your inventory with two open slots above that The first slot is for the item you wish to enchant and the second is for lapis png so that the graphic was correct Now, for the fun part lol I ALMOST freaking have this I can literally place an item in my new slot, BUT