public function question_move_icon(structure $structure, $slot) {
        return html_writer::link(new \moodle_url('#'),
            $this->pix_icon('i/dragdrop', get_string('move'), 'moodle', array('class' => 'iconsmall', 'title' => '')),
            array('class' => 'editing_move', 'data-action' => 'move')
        );
    }