Yandex maps API how to show transport numbers?

Question

Yandex

How to show transport numbers on the map?
Now it just shows the segments where to go on foot and the stopping points where you should sit down or make a transfer.
I route it like this:

var multiRoute = new ymaps.multiRouter.MultiRoute({
      referencePoints: [
        routeFrom,
        [44.611021,33.546381]
      ],
      params: {
        routingMode: routingModeType,
        routeTransportMarker  : true,
        routeTransportSegment : true,
      }
    }, {
      // Автоматически устанавливать границы карты так, чтобы маршрут был виден целиком.
      boundsAutoApply: true
    });