It is simple to define a screen as being a member of the Generic Menu group. Simply select the GenericMenu template in the Screen definitions PageTemplate property:
Then, depending on the menu option formatting on your menu, your screen may or may not be parsed correctly. The use of the Web Preview is recommended, as the Generic Menu templates are supported in Web Preview. By testing in Web Preview, you can ensure that the active MenuOptionsRegex property will work with your menu screen (by identifying each menu item correctly).