Summarizing or imploding the data
If the data is displayed in a detailed form, it may be possible to summarize the data
      using the  action to summarize all of the
      details to the next level of summary. Or, by highlighting the individual lines to be
      summarized and choosing the Implode action.
    Summarized rows are identified with a '+' plus sign displayed in the first column of the grid. Multiple levels of summary are identified by multiple '+' plus signs. Up to four summary levels (implosions) can be performed for a single grid.
Note:  When imploding data, only certain
      value columns are summarized, all other columns become spaces except for those that have been
      specified for the implosion level.