Larian Studios Forums Divinity: Original Sin 2 - The Modding Dungeon Divinity - Original Sin 2 - Modding General campaign editor: new overland maps?

Is it possible to import new world or overland maps into the campaign editor?

Yes; right click on the map, select Change Map Image, click the Browse button, select an image (at least jpg and png formats are supported) and add it, then select the image and Apply.