Optical flow in flight calibration

H,

I’ve been trying to make use of the optical flow in flight calibration as stated here:Optical Flow Sensor Testing and Setup — Copter documentation

However i do not seem to be able to get the output that shows me my FLOW_FXSCALAR and FLOW_FYSCALAR values. Attached is an image of what i see in my “Messages” tab.
image

Does this tell me whether or not my in-flight calibration is successful?

I am using arducopter 4.2.3.

Thanks!