How to control hexacopter with keyboard in Mission Planner?

Ground Control Software Mission Planner
1

I can control my hexacopter with joystick in Mission Planner, but obviously I want to do this with the computer keyboard. how can I do it?

2

With something like this GitHub - Snoothy/UCR: Universal Control Remapper [Alpha]

3

I need a solution that I can use on a Raspberry Pi 4

4

There is none I know of.