Hello @scls19fr!
Are you aware that most proposed features available in slew mode?
After Y key pressed, you can change position (NUM 4 8 6 2), heading (1 3), bank (7 9), altitude (F1 F4)
No airspeed though, it will be taken from relative FLT file of the aircraft.
I am using it in development, and don’t feel any additional improvements are required, especially in 3rd party tools. Let me know what you think about it.