/**
 * Add a layout to this view
 *
 * @param   string  $layout  Layouts that this view supports
 *
 * @return  RouterViewConfiguration  This object for chaining
 *
 * @since   3.5
 */
public function addLayout($layout)
{
    $this->layouts[] = $layout;
    $this->layouts = array_unique($this->layouts);
    return $this;
}