This is one of the most unique page types that we have. A page with no menu would have no yellow navigation bar on the left hand side. These pages are not commonly used by departments, and are normally reserved solely for administrative pages such as the AtoZ page.
A page with no menu would not be associated with any other pages and thus would have no need to have any navigation elsewhere that would be directly related. If you would like to make a page like this please contact firstname.lastname@example.org to create one. This is an unusual page type and will have to be approved to be such a page.