Is there a way to have a button on the front panel that when pressed or when the cursor moves over it, a choice of 4 programs appear to the user? This list could be closed by pressing cancel or by removing the cursor from the initial button.
What about changing the visible property on either a list or a menu ring? On Mouse Enter for the button you could make the list/menu visible, and on Value Change for a cancel button you could hide the list/menu.
Grant, Mlloyd is correct however I would use the event structure on the control so that LabVIEW will respond when the mouse cursor enters and leave the control area. When these events occur you can manipulate the control using property nodes.
Have a look at event structures and the LabVIEW user manual.
Hope this helps,
Kind Regards,
Steven Bird Applications Engineer National Instruments