public function getDisplayName()
 {
     if (!($swissReportMerge = $this->getSwissReportMerge()) instanceof I2CE_Swiss_CustomReports_Report_ReportingForm_Field_Merge) {
         return parent::getDisplayName();
     } else {
         return $swissReportMerge->getDisplayName();
     }
 }
 public function getChildType($child)
 {
     switch ($child) {
         case 'display_options':
             return 'CustomReports_ReportView_Displays';
         case 'default_display_options':
             return 'CustomReports_ReportView_DisplayOptions';
         default:
             return parent::getChildType($child);
     }
 }