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