Library /sys$common/syshlp/dtmplayrec.hlb PlayRec, PR MnWind, work Form, pr StartB Btn  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  Choose the Start/Stop button to start or stop the play
  of a script.  Initially, the Start/Stop button contains
  the label, "Start".  While a script is playing, the
  label is changed to read, "Stop".