virtual void CustomizeHeader ( [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [IPropertyHandle](API\Editor\PropertyEditor\IPropertyHandle) > PropertyHandle, class [FDetailWidgetRow](API\Editor\PropertyEditor\FDetailWidgetRow) & HeaderRow, [IPropertyTypeCustomizationUtils](API\Editor\PropertyEditor\IPropertyTypeCustomizationUtils) & CustomizationUtils )