How to change parametres in ros2

ROS 1 / ROS 2
1

I need to change fixed-wing parameters in ROS 2 using MicroXAgent. I’m publishing to the VehicleCommand topic, and I see that VEHICLE_CMD_DO_SET_PARAMETER = 180 is used for setting system parameters.

The documentation states:

"Parameter number | Parameter value | Empty | Empty | Empty | Empty | Empty"

However, I couldn’t find the “Parameter number” values for different PX4 parameters.