Control_Variables

  The following logical variables can be used to control the behavior of
  certain commands. They are fully described in the manual Guide to DIGITAL
  Test Manager for OpenVMS Systems or in the product Release Notes.

    DTM$DATE_FILTER_FIRST
    DTM$DATE_FILTER_MAX_YEAR
    DTM$DATE_FILTER_MIN_YEAR
    DTM$DATE_FILTER_STRING
    DTM$DATE_MASK_MAX_YEAR
    DTM$DATE_MASK_MIN_YEAR
    DTM$DELAY_TIMEOUT
    DTM$IGNORE_PROLOGUE_ERRORS
    DTM$OMIT_PRINTABLE_SCREENS
    DTM$RETAIN_RESULTS
    DTM$TIME_FILTER_NO_SPACE