public function addButtons($buttons)
    {
        // Add a first separator
        array_push($buttons, '|');

        // Iterate on configs
        foreach ($this->configs as $key => $file) {
            if (empty($file) && 'media' !== $key) {
                continue;
            }

            // Update buttons
            array_push($buttons, $key);
        }

        return $buttons;
    }