SketchUp shop tutorials on a Mac

I’m a SketchUp Make user trying out SketchUp Shop. The interface is different and I need a tutorial. The SketchUp School video doesn’t appear to use the web format. I can’t even get started. Help!

You might start here:

FWIW, the user intreface for the SketchUp for Web rpoducts is the same between Mac and Windows since it runs in your Internet browser.