The DECTPU keyword UNANCHOR can be used to replace
  sections of text delimited by specified strings. The
  following replaces all text between the strings "/*"
  and "*/" with the string "/* Text deleted */". The text
  may run across line boundaries:

     global_replace ( "/*" + UNANCHOR + "*/",
                      "/* Text deleted */")

  Note that while a similar effect is possible using the
  COMPARE/SENTINEL command, the filter can be applied
  to individual tests, whereas the /SENTINEL qualifier
  applies only to collections.