The number keys are not valid hot keys for our controls. The easiest workaround would be to use fhe F keys instead (F1 for button 1, etc.) However, if you are set on the number keys you could implement this with a panel callback. You could have a panel callback that monitors all keypress events and then, depending on the key pressed, calls the code that would be called with a button press of the button for that key.
Best Regards,
Chris Matthews
Measurement Studio Support Manager