Head over to the Widgets page to view the available widgets. Click the "Install" button on the second panel which belongs to "Product Page List" then choose the theme you are on. 
Click on the 'Configure' button for the Product Page List widget to open the configurator. You will need to be on the Pro plan to use this widget.
At the top you will see an area containing a little piece of information letting you know the theme in use for the widget is 2.0 ready and no installation will need to take place.
You can now head directly into you Online Store > Customiser, and navigate to the page you wish to display the widget.
