Provide an introduction to set the context of the product development.

Each document type has child document support, so does the Product Backlog Doctype.

Usually this is not used, since you can build hierarchies with User Stories themselves.

List the stories in the backlog. If this is a view on stories of the team backlog, do not add stories as subdocuments to the backlog document. Use a query and select the stories to be displayed in this view by their properties.