`routes`). -1 when there
         * is no active route.
         *
         * @attribute selectedIndex
         * @type integer
         * @readonly
         */
        selectedIndex: -1,

        /**
         * The selected `MoreRouting.Route` object, or `null`.
         *
         * @attribute selectedRoute
         * @type MoreRouting.Route
         * @readonly
         */
        selectedRoute: null,

        /**
         * The path expression of the selected route, or `null` if no route.
         *
   