With this plugin, you may re-order the order of the pages and the hierarchical order of the pages.

Robust tools for managing hierarchical page content in WordPress. Ideal for blogs with large page counts.

The Article Forge WP plugin provides a conducive environment for the writing and publishing of hierarchical prose.

Responsive sidebar menu wdiget for hierarchical pages with Bootstrap 3.0.

A dynamic navigation widget for those using WordPress as a web site as opposed to a basic blog.

Add threaded (nested) reply functionality to bbPress.

This plug-in is a plug-in that adds a number string that can grasp the heading hierarchy at the head of all headings created by h1 to h9 in the articl …

Generate more traffic and time spent on your website by inviting users to read similar contents. Spread your own content or even those of your partner …

Lets admins create searchable, hierarchically-organized documentation. Supports Markdown and syntax highlighting for code. Requires WP MVC.

The Hierarchical Posts Tree Plugin adds a WordPress Dashboard Widget to display hierarchical Pages or any Hierarchical Post Type in an organised manne …

Will change the order logic for taxonomies from alphabetical to hierarchical order.

The plugin displays the Hierarchial Page View only in the Admin section for large number of Post/Pages. Currently goes 5 Levels Deep.