Most important parameters in mission planner

ArduPlane Plane 4.5
1

hello everyone
can someone tell me what are the most important parameters in mission planner?
which of them is used more often?

2

Unable to answer this as there are many, many parameters that are critical AND used all the time and so none would be “used more often”. Are you sure you’re asking about the correct thing?

For example, the parameter AHRS_ORIENTATION is critical, it cannot be wrong else the autopilot won’t work and it is used all the time.