Jigsaw

The Jigsaw system on our latest versions (from release 2.0.0 on) has not been great. Some of the commands may not be functioning as expected/wanted. The video below is still reasonably up to date to help you get started. Make sure to use autocompletions and the examples of the overworld. You'll figure it out in no time!

This is the best you're going to get for now.

*cries in jigsaw*