A common use case with a Visual CMS is to have a region on your product page for adding more editorial about the given product—or for all products of a given type or collection. This could include content such as storytelling, imagery, videos, recommended products, and other merchandising.
A standard section model named
product-editorial is all you need.
By default you don't need any fields. Instead, this example uses targeting to decide where the section should display; such as for a given product or any product of a certain collection.