Qualifiers

/LOG (D)
   Controls whether CMS displays success and informational messages
   on the default output device. By default, if the command executes
   successfully, CMS displays a success message. If you specify
   /NOLOG, success and informational messages are suppressed. Any
   warning, error, or fatal error messages are displayed regardless
   of whether /LOG or /NOLOG is specified.

/OCCLUDE[=option,...]
   Controls whether CMS selects the first instance of the specified
   object, or all instances of the specified object in the library
   search list. The options field contains one or more keywords
   associated with the name of the object. The options field can
   contain the following keywords:

      ALL--equivalent to GROUP
      GROUP (D)
      NOGROUP
      NONE--equivalent to NOGROUP

   You can specify either ALL, NONE, or the [NO]GROUP keyword.

   By default, CMS performs occlusion for all objects; that is, CMS
   selects only the first occurrence of a specified object. If you
   specify /OCCLUDE=NOGROUP, CMS creates a group in every library in
   the search list.