Easy Hierarchy
by Marco Milesi on WordPress.org

New "Page Tree" submenu in the Pages admin screen
Managing complex page hierarchies in WordPress can be a challenge. Easy Hierarchy streamlines your workflow by adding powerful tools to the admin area, making it simple to filter top-level pages and visualize parent-child relationships for every item.
Features:
– Adds a “Page Tree” submenu under Pages for a full visual hierarchy overview.
– Displays parent and child relationships in a collapsible tree.
– Quick search box to filter pages by title.
– Shows publish date, last revision date, and status for each page.
– Direct Edit and View links for every page in the tree.
– Highlights number of child pages for each parent.
– Adds a “Parent” column to the Pages list:
  – See the full parent hierarchy for each page, with clickable links to filter by parent.
  – Instantly view the number of child pages for any page, with quick filtering.
– Fully integrated with the WordPress admin interface.