This is the top level products page, it uses the product group page type, and it allows you to show your products checked as 'featured' on it. It also allows you to nest product group pages inside it.
For example, you have a product group called 'DVDs', and inside you have more product groups like 'sci-fi', 'horrors' or 'action'.
In this example we have setup a main product group (this page), with a nested product group containing 2 example products.
