Home cockpit hardware - how are we supposed to do this if we don't have a complete key list?

Yup. That was the zendesk support for Microsoft flight simulator 2020 official response to a question regarding documentation for input control set up. - specifically what the various binding options for throttle axes do. (There are functional differences.)

In a separate ticket where I asked what the actual success criteria for achievements was (and what might inhibit successful completion of an achievement flight…because surely somebody in support must have written down the conditions somewhere right? Right?) the answer was…

wait for it…

Ask the community.

Seems like an easy job working on the zendesk support desk.