(1) CMS> MODIFY CLASS PRE_RELEASE/READ_ONLY "freeze internal version"
        %CMS-S-MODIFIED, class DISKX:[PROJECT.CMSLIB]PRE_RELEASE modified

      This command sets the class named PRE_RELEASE to READ_ONLY.

    (2) CMS> MODIFY CLASS PRE_RELEASE/NOREAD_ONLY/NAME=PRE_RELEASE_V3
        _Remark: include additional functions
        %CMS-S-MODIFIED, class DISKX:[PROJECT.CMSLIB]PRE_RELEASE modified

      This example renames class PRE_RELEASE to PRE_RELEASE_V3.
      Because PRE_RELEASE had been set to READ_ONLY, it is necessary
      to use the /NOREAD_ONLY qualifier to modify the class.