Here's some footage of the world editor. I'm working on the free DLC fort-defense map. I show both editor modes here: first the overhead GUI mode, and second the walk-through command prompt mode (which I am much more used to). Still trying to make the GUI mode more user-friendly. The DLC map should be up on Tuesday or Thursday. It should be a good example of what you can do with the editor.
https://www.youtube.com/watch?v=R_JA2x9sw2k&feature=youtu.be