You should be familiar with the Modding Basic Concepts tutorial before following this one.   In this tutorial, I'm going to show you how to use a ModScriptHookGameData object to add a new item to a store or other inventory in the game.   ModScriptHookGameData is a new game data type that was added in v2.1.0.  It contains a set of scripts that will be run each time the player enters a scene in the game.  This is a good way for a mod to make alterations to the contents of scenes with your mo