The double menus share the main SwipingMenu script. Only the menu attributes are added to create the second set resulting in a very efficient menu system. You can add as many Main menu or Sub Flyouts to the double menus as you like without worrying about bloating your page. Your only limited by your imagination...
Create an entire separate menu system, vertical or horizontal, combine the two together or make a special feature section.
Swiping Menu Modules
Modules currently available:
Note
The Swiping Menu Modules require the SwipingMenuBuilder to be installed to function.