code: public int setGridFile(Record record, int iKeyNo)
      {
          String keyAreaName = null;
          if (iKeyNo != -1)
              keyAreaName = record.getKeyArea(iKeyNo).getKeyName();
          return this.setGridFile(record, keyAreaName);
      }
docs: Mark the main grid file and key order.<p>
  Included as a utility for backward compatibility (Use SetupKeys now).
  Basically, this method clones the key area for this record.
  @param record The record in my list to get the key area from.
  @param iKeyNo The key area in the record to retrieve.
  @param The index of this key area.