The same question MacKenrick has and no luck so far to have the Whisper option working.
I “fly” a fligth simulator (callsign “Mokum” in Falcon BMS) and would like to have comms between the fligth channels separately. Setup on my game stick:
- Button 20 = “Push to Talk” and for comms in the same TS channel
- Button 21 = “Push to Whisper” and for comms with other TS channels
Next picures that clarify some more (I hope )

Thank you in advance!