Online there are many more jugs than I can find on the app. How do I access them?
Hi @mlougee welcome to the community 
Are you referring to the JigSpace app? So far, they are the only publicly available Jigs. However, you can create your own Jigs with Jig Workshop. It’s really easy to use, available on both iPhone and iPad.
What kind of Jigs would you like to see more of?