public function col_registration($tool) {
        global $OUTPUT;

        $url = helper::get_proxy_url($tool);

        $toolurllabel = get_string("registrationurl", "enrol_lti");
        $toolurl = $url;

        $data = [
                "rows" => [
                    [ "label" => $toolurllabel, "text" => $toolurl, "id" => "toolurl" , "hidelabel" => true],
                ]
            ];

        $return = $OUTPUT->render_from_template("enrol_lti/copy_grid", $data);
        return $return;
    }