The 'Folder Menu' plugin shows a menu to the side of the blog in a fixed or scrolling position that expands options (if available) to reveal menu sub-items.
The commercial license simply allows to the menu to show more than 3 menu items and 5 sub-items.
Unpack in your modules folder (usually '/sites/all/modules/')
Enable under Administer > Modules
Other versions of this plugin:
Here are some key features of "Folder Menu (Drupal)":
· Customize menu colors
· Use the menu with new or existing Drupal menus
· Drupal 6.x/7.x
What's New in This Release: [ read full changelog ]
· Added FLA files.