public function frontendLectureshipEdit($Id = null, $Data = null, $Visible = false)
    {
        $Stage = new Stage('Lehrauftrag', 'Bearbeiten');
        $tblIndiwareImportLectureship = ($Id !== null ? Import::useService()->getIndiwareImportLectureshipById($Id) : false);
        if (!$tblIndiwareImportLectureship) {