The Subpage View plug-in, installed on GRC WordPress sites, uses WordPress shortcode [external] functionality to easily list sub pages (children of a parent page, a.k.a. pages that appear under a page in the navigation) in any Page or Post.
This shortcode can be placed anywhere in your text (preferably on its own, separate line) in either the visual or HTML editor, and it displays the pages as a bulleted list. Since this shortcode is a function, it will dynamically update the list as you update your Page arrangement (by adding Pages in the navigation, changing Page order, etc.)
