REM WAIT_FOR_BUTTON_PRESS halts payload execution until a button press is detected.
REM When this command is reached in the payload, no further execution will occur. The button definition (either set using BUTTON_DEF or the arming-mode default) will be suppressed.
STRING Press the button...
WAIT_FOR_BUTTON_PRESS
STRING The button was pressed!
REM The text "The button was pressed!" will not be typed until the button is pressed.