[SCRIPT] I need a help please

[Red]

Key is not working? You have to use "AddUseItemCallback(string& asName, string& asItem, string& asEntity, string& asFunction, bool abAutoDestroy)", for it to work.
And for the syntax: "void YourFunction(string &in asItemA, string &in asItemB)"

asName - internal name for the callback
asItemA - internal name of first item
asItemB - internal name of second item
asFunction - the function to call
abAutoRemove - determines whether the callback should be removed when the items are combined

I would recommend to put the "AddUseItemCallback" script under OnStart() or OnEnter() section.