A menu in a web application is represented by an Action Group control.
An action group, as is, can also be used as a toolbar. The Control Type property of the action group determines how it will be displayed.
When the action group is used as a menu, it is called a Web Navigation Bar, and it is based on Bootstrap Navbars.
As a menu (and as a toolbar also), the action group can be loaded dynamically, which means that it can be loaded from an SDT structure. See How to create a dynamic menu for WEB applications.