apply custom model data to item

[sweet cloak]

I want to show an item with a string as custom model data in in a gui, but when I use "apply custom model data component" by SkBee it says I need the item_component feature
Anyone knows how to enable that feature or knows another way to apply in this case "advancements:1" to an item in a gui?

[umbral wraith]

put using item_component at the top of your script file

[sweet cloak]

ty ;D