Jon Christopher

NOTE: If you’re looking for something more user-focused, take a look at <a href="https://organizewp.com/?utm_source=wordpressorg&utm_medium=link&utm_campaign=readme" rel="nofollow ugc">OrganizeWP</a> which is complete rethinking of Hierarchy!
Custom Post Types (sometimes) need context, Hierarchy allows you to rework your content management workflow by essentially moving Custom Post Type admin menus into your Pages list. What this does is mimic the navigation you’ve set up on your site by placing Custom Post Type edit links amongst your Pages where they belong.
<a href="https://wordpress.org/plugins/hierarchy/screenshots/" rel="ugc">» Check out the screenshots to see Hierarchy in action</a>
Hierarchy removes unnecessary entries from the Admin Menu and instead injects theme where appropriate amongst your Pages, grouping everything under a single ‘Content’ Admin Menu entry.
<h4>Custom Post Types NEED context</h4>
Custom Post Types are great, but the editing workflow can be improved. Adding a Custom Post Type likely results in another WordPress admin sidebar menu, abstracting the management of that content from the main organization of your site, Pages. Hierarchy intelligently extends your Pages menu by including your Custom Post Type admin links within the Page structure, allowing for a much more natural workflow when managing your content.
<h4>Examples</h4>
Chances are you’ve customized your <code>Front page displays</code> setting to display a static page instead of your latest blog posts. Now you’ve got a sidebar link to manage your Posts and a WordPress Page called “Blog” that sites in your list of Pages doing absolutely nothing. Hierarchy remedies both problems by converting the “Blog” page link to be one that lists your Posts. It also hides the Posts sidebar entry (if you want it to).
It’s also likely that you’re utilizing Custom Post Types to power sections of your website, but it’s awkward to manage the content of an internal section of your website using the main WordPress admin sidebar links to your Custom Post Type. Hierarchy will allow you to hide those sidebar links and instead nest them amongst your Pages, providing contextual links to manage the content of your Custom Post Types.
<h4>More information</h4>
If you’d like a lot more information on the implementation and workflow changes, <a href="https://wordpress.org/plugins/hierarchy/screenshots/" rel="ugc">check out the screenshots</a> and please see <a href="https://mondaybynoon.com/introducing-hierarchy/" rel="nofollow ugc">the introduction</a> and <a href="https://mondaybynoon.com/hierarchy-1-0-is-here/" rel="nofollow ugc">the follow-up for 1.0</a>.

Hierarchy

That cleans up things in your WordPress as CMS installation.

Cool plugin

Move your Pages/Posts/Custom Post Type admin links from the sidebar to a Content menu that nests everything where it should be

Mark Jaquith

Subpage Listing allows you to take full advantage of WordPress Pages’ hierarchy by generating a navigational tree of the pages below them (subpages).
For example, say you have a parent page called “Parent.” Now, say you have 3 pages under “Parent,” called “Child1,” “Child2,” and “Child3.” Now, say that you have 2 pages under “Child2” called “Grandchild1” and “Grandchild2.”
Subpage Listing would create a navigation tree for “Parent” that looks like this:
<ul>
<li>Child1</li>
<li>Child2
<ul>
<li>Grandchild1</li>
<li>Grandchild2</li>
</ul>
</li>
<li>Child3</li>
</ul>
This allows you to very easily create a complex hierarchical structure that can be browsed.
<h3>Advanced Usage</h3>
Blank pages will automatically be given a navigation tree. This allows you to quickly create “container” pages (all you do is fill in a title, and choose the page’s parent.)
If you would like to insert the navigational tree manually (that is, surrounded by text of your choosing), use the “Subpage Listing” quicktag that will show up on the Write Page screen (sorry, no RTE support at this time). This will insert the tag:  which will be replaced by the listing of the subpages.
Note: when inserting the tag manually, make sure that there is a blank line both above and below the tag, so as to ensure proper handling of your surrounding paragraphs by WordPress.
Version 0.6 was a massive update that added a bunch of new functionality. The ability to show the current page’s parent has been added, as well as the ability to show the current page’s siblings. You can also suppress the showing of children, and show only siblings, parents, or both. To use these features within a post, use this syntax:  The first “parameter” is the depth you want to show. You can set this to 0 to suppress display of children. The second “parameter” is a boolean switch for display of the parent page. The third “parameter” is a boolean switch for display of sibling pages. All are optional, although if you want to set the second “parameter”, you also have to set the first, and if you want to set the third, you have to set all three.
There is also a new function for use in your templates. Many people wanted to show subpages or siblings in their sidebar, so now you can do that. <code><?php txfx_wp_subpages(); ?></code> is the most basic form, but it can take many parameters.
<pre><code><?php txfx_wp_subpages(5, false, false, '<ul>', '</ul>', true); ?> will show 5 pages deep (first parameter), hide the parent (second parameter), hide the siblings (third parameter), wrap the whole thing in '<ul>' and '</ul>' (fourth and fifth parameters), and will echo the result (sixth parameter). These happen to be the default settings, that I have just illustrated.
</code></pre>

Subpage Listing

Allows you to display a list of the child pages of the currently viewed page.

Hierarchy vs Subpage Listing