Does Anyone Know How To Make A Storage Booster Vending Machine Like Fishtopia

I’m making a map that has Farming and Fishtopia and I want to make upgrades

make the settings in vending machine transmit on channel"" and add a custom icon and make it give you upgrades

Get 2 seperate Inventory Item Managers(IIM) that manage the item. Set them to have 2 different maximum amounts, one higher and one lower. Set the lower max amount IIM’s used by default setting to yes and the higher max amount IIM’s use by default setting to no. Then get your vending machine and wire it to the higher max amount IIM [item purchased → activate inventory item manager].