Copies one or more existing groups to form one or more new
    groups. If you copy a group to the same library, the new
    group must have a different name. The COPY GROUP transaction
    preserves all group attributes and inserts elements and groups
    that belong to each input group. The elements to be inserted
    into the new group must already exist in the target library.

       Format:

          COPY GROUP  old-group-expression new-group-name "remark"