[FSceneOutlinerSortHelper](API\Editor\SceneOutliner\FSceneOutlinerSortHelper) & Secondary ( [FSecondaryFunction](API\Editor\SceneOutliner\FSceneOutlinerSortHelper\FSecondaryFunction) && Function, [EColumnSortMode::Type](API\Runtime\Slate\Widgets\Views\EColumnSortMode__Type) SortMode )