The process to create menus is very simple. Just choose a name and link to the folder that will contain the shortcuts you want to see in the menu.
There are different types of menus (stack or grid), as well as different ways to display them. You can configure everything in the Preferences window.
The menus created by Standalone Stack can be viewed from their corresponding icons, even if they're located in the task bar, which makes thing simpler and more versatile.