https://www.google.com/search?q=companion+rosstalk+listener&rlz=1C1CHBF_enCA1050CA1050&oq=companion+rosstalk+listener&gs_lcrp=EgZjaHJvbWUyBggAEEUYOTINCAEQABiGAxiABBiKBTINCAIQABiGAxiABBiKBTINCAMQABiGAxiABBiKBTINCAQQABiGAxiABBiKBTIKCAUQABiABBiiBDIKCAYQABiABBiiBDIKCAcQABiABBiiBDIKCAgQABiABBiiBNIBCDQyMTdqMGo3qAIAsAIA&sourceid=chrome&ie=UTF-8
There is a feature (I don't use it so I don't know the details.. but it must be in their docs)...
They can enable a RossTalk Listener and then I think they use the Custom Control Command to map to their buttons.
So in DashBoard you setup to send to the Companion and send the CC RT command they specify.
------------------------------
Les O'Reilly
Director - Switcher Product Management
------------------------------