Like dividers, sub-trees are also useful in situations where you wish to separate pages of a specific type from other pages in the menu; however, a sub-tree adds a fly-out menu panel to the menu, rather than a horizontal line. To add a sub-tree:
1. Open the Menu Editor.
2. Select the menu item under which you wish the sub-tree to be added.

3. Click the Add Sub-tree button (shown below). A Sub-tree header is added to the Menu Editor.


4. Enter a title for the sub-tree in the edit field.
5. Press the Enter key on your keyboard. The sub-tree is added to the Menu Editor.

You can now reposition menu items under the sub-tree by clicking and dragging, or you can use the Add button to add new pages as menu items for the sub-tree.