there are deep links to the examples in the github page, if that's what you mean
pan / zoom isn't super well supported, sorry. i've just been using my browser's zoom in / out
if you open the help menu, there's a key combo (cmd + shift + v) to hide / show the graph
option+e load the design chooser.
How do I pan/zoom the design surface?
How do I hide the node graph so I can see the thing being rendered?