Larian Studios Forums Divinity - Original Sin Divinity Original Sin - Mods How to download ?

Ok, it seem's like a dumb question, I have the game, installed through Steam, but I don't know how to install the ToolKit to make mods.

SO, where do I donwload it ?

When you hover over library you can select a couple of options.
Click on Tools and then download 'The Divinity Engine'