silverstripe-subsites/docs/en/working_with.md

Working with subsites

Managing content across subsites

Select a subsite from the dropdown in the upper left to display the content for that site in the site tree.

Subsites virtual pages

You can pull in the content from a page that resides on another subsite by creating a page of the type Subsites Virtual Page. Pick the subsite from which you want to pull the content, then select the page. As with regular virtual pages, your Subsites Virtual Page will display the content from the original page and get updated automatically if the original content changes.