Below is the site map tool. In this case I've selected pages from 3 different sections of the site. You can either select individual pages or one page and all pages that are under it.
An example of one page and all under it is this FAQ section.
The FAQ is a level 1 link and What Tool to Use is a level 2 link, and the final pages are level 3 links under the level 2 link. You can see how the levels work and this Site Map tool updates automatically.
The Memorial and North sections have two individual pages selected for each.