Larian Studios Forums Divinity: Original Sin 2 - The Modding Dungeon Divinity - Original Sin 2 - Modding General How to import your adventure into the game?

I've created a reasonably simple adventure in the editor, and I've published it (both locally, and to steam workshop privately - I don't want to make it public until I've been able to play through it myself). I see the mod in the "Manage Mods" list, but I don't have the option to run it in story or GM mode. Is there some step that I've missed to make this work?