Hi,

You need to make sure your (add-on) mod has a dependency/loads data from Divinity Origins. For existing mods, you can do this in the Project Settings. Then, in the level browser, toggle "Show Inherited Levels" (top right). Now you will be able to load and modify Fort Joy (or any Story level) in your mod (short guide on modding Fort Joy).

In Fort Joy, find the vendor you want to change, and either:
- Add a custom treasure table to the "TradeTreasure" property in the SideBar
- Add your skill book to one of the treasure tables defined in the NPCs TradeTreasures (by copying the TreasureTable to your mod in the Stats Editor and adding the skillbook)

Last edited by Larian_JB; 02/10/17 07:33 AM.