QGoundControl Analyze

I want to show changing PID parameters in QGroundControl Analyze section. I’m searching mavlink_msg libraries to add parameters but I can’t understand the structure of program.
How can I do this? Where can I start?

Now I am trying add some parameters to LOCAL_POSITION_NED in QGC Analyze section. I added this parameters mavlink_msg_local_position_ned.h and showed mavlink_messages.cpp.
I changed MAVLINK_MESSAGE_CRCS array in common.h (v2.0). But I can’t see this parameters in Analyze section. What else do I need to change? I can’t figure it out.

Maybe the problem is CRC value but I am not sure.