From Xojo Documentation

Design Property (as Boolean)

This DesktopMenuItem property can only be set in the Inspector and is not available in code.

The Control key on Mac. This property is Mac-only. If selected, the Control key must be held down while pressing the value of the ShortcutKey property in order to trigger the event handler of the DesktopMenuItem.


Use DesktopMenuItem.Shortcut to change this value at runtime.