Can PIxhawk send pitot airspeed not GPS ground speed to Taranis?

Might be a documented thing that I just can’t find after looking around a bit including link below. Can anyone enlighten me as to whether a Pixhawk with ArduPlane FW loaded can feed the pitot airspeed value (I have a pitot) to my Taranis via the FRSky protocol instead of the GPS ground speed that it seems to be sending now ?

I imagine it might be a case of a parameter setting to define the airspeed sensor source for FrSky telemetry. Anyone know ?

http://ardupilot.org/plane/docs/common-frsky-telemetry.html