How to automatically open a trunk from MultiRoute in yandex map api?

Question

Yandex maps

Hello! I made a script that, when entering the address, 3 routes were laid to the nearest labels. I just can’t figure out how to automatically open the bag at MultiRoute. Tried it with events.fire('balloonopen'); nothing helps.
Here is a demo https://dev5.vh448018.eurodir.ru/
https://jsfiddle.net/Max_Lee/mvg1xbde/4/
For example, you can enter this address: Moscow, Novogireevskaya street, 48a
It is necessary that when entering the address, a route was built and automatically opened baul, the result should be like this