Credits: Salas
Smart Stack addon
Smart Stack is a handy Minecraft addon that keeps you in the action by automatically refilling your items. Whenever you're placing blocks, eating food, mining, throwing items, drinking potions, fishing, or battling, Smart Stack instantly replaces used or broken items with extras from your inventory. You will never have to keep several spare pickaxes or swords on your hotbar in case one of them runs out of durability. You still have to have those replacement items in your inventory though.
Credits: Salas
Credits: Salas