popupConfirmation(title, message, event)
Raises a pop-up on screen that asks for confirmation
@status current Introduced in 2.2.0, changed from (title, event) to (title, message, event) in 2.3.8
title(string) title to display
message(string) text to display
event(number) the event variable that is passed in from the Run function (key pressed)
"CANCEL"user pushed EXIT key
Use only from stand-alone and telemetry scripts.