Lib-jitsi-meet - video bridge region selection

Hi,
I have seen some of load ballancing and cascading tutorials in order to achieve load ballancing based on geo location. It is quite clear how to setup video bridge “region” from here https://github.com/jitsi/jitsi-videobridge/blob/master/doc/octo.md
But how do I pass “region” from custom client app based on your lib-jitsi-meet sdk so the user is sent to the video bridge in his prefered “region”? Many thanks.

Lukas

Open meet.jit.si/config.js and look at deployment info, sumilar part need to be passed to the lib.