Hello Thomas!
The LabVIEW User Manual states on page 4-20 the following, 'LabVIEW displays only the visible area of the front panel of the VI you load in the subpanel control. After you stop the VI that contains the subpanel control, LabVIEW clears the front panel in the subpanel control. You also can use the Remove VI method to unload the VI in the subpanel control.'.
The run-time menu is not considered to be a part of the frontpanel when talking about subpanels as for now at least so it is not possible to achieve.
Regards,
Jimmie A.
Applications Engineer, National Instruments Sweden
Regards,
Jimmie Adolph
Systems Engineering Manager, National Instruments Northern European Region