Hey could anyone code me a upgrading plugin so basically how it works is there is a gui i have made the gui using ultra customiser if not supported i can change it if u want so u can place an item that can be upgraded into a slot in the gui and it'll give u a preview of the next item in another slot and the materials needed to upgrade it justright below it and at the middle of the insert slot and preview slot it has a emerald named click to upgrade and when clicked it checks the materials and if they have it it lets them upgrade it