Add submenus
To add a submenu to a pull-down or popup menu: 
1.	Select 

, the Menu Cascade part, from 

, the Menus category. 
 2.	Click on the pull-down or popup menu on the free-form surface. 
A menu choice with > gets added to the pull-down or popup menu, and a connected MenuBar Item part appears on the free-form surface. This new MenuBar Item part is the submenu--or the cascading menu. 
Now, add whatever menu choices you need, change their labels, and connect the clicked event of each menu choice to an action. 
Last modified date: 08/14/2019