Hope you are good and healthy.
I am sorry I do not have answer to your question but I would really appreciate if you help me with the HITL. I am trying to do the same. I am trying to do px4+QGC+x-plane. I cannot get the feedback from the xplane. How to do that?? and i have been trying to enable the sensor level hil but it does not work (coz QGC gyro does not move with movement of px4 gyro). How to do that?? even when I check the sensor level hil box in the HIL config block it still does not work. What do you think i am doing wrong here?