X ray mode for SketchUp Shop?

Is X ray mode available in SU Shop? If so, where is it?
Also, is there a list of (windows) keyboard shortcuts somewhere?

The quickest way is to click on the search icon (or type ‘?’) then type x to search for x-ray, then click the slider to turn it on or off.

There’s also an x-ray style in the default styles:

There’s wireframe and hidden line styles there too.