You don't get the behaviour you want to have.
1. The help vi is just executed once, as there is no while loop around the event structure. So it executes after 100ms and that's - the vi stops.
2. You could control the main vi, because the help vi stopped as described above. If it was running, you cannot control the main vi. Either call the help vi in parallel to your main vi or call it dynamically.
Thomas
Using LV8.0
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