SELF_DISPLAY

    If YES, display Clean image before each calibration  loop,  and  prompt  for
    user  input. If YES, Cleaning at each step will use the number of iterations
    specified by NITER, while if set to NO, Cleaning will  stop  at  SELF_NITER,
    saving time.

    The dynamic range progress report is accurate only if SELF_DISPLAY is set.