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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:

• Child1
• Child2
  • Grandchild1
  • Grandchild2
• Child3

This allows you to very easily create a complex hierarchical structure that can be browsed.