/[NO]SHOW

  Controls whether optionally listed source lines and a symbol map
  appear in the source listing.  (Optionally listed source lines are
  text-module source lines and preprocessor-generated source lines.)

  For the /SHOW qualifier to take effect, you must specify the /LIST
  qualifier.

  [NO]INCLUDE
    Controls whether the source lines from any file or text module
    specified by INCLUDE statements are included in the source
    listing.

  [NO]MAP
    Controls whether the symbol map is included in the listing file.

  ALL
    Requests that all optionally listed source lines and a symbol map
    be included in the listing file.  This is the same as specifying
    /SHOW without any arguments.

  NONE
    Requests that no optionally listed source lines or a symbol map
    be included in the listing file.  This is the same as specifying
    /NOSHOW.

  The /SHOW qualifier defaults are NOINCLUDE and MAP.