I just wanted to thank what ever developers somewhat enabled Keyboard and Mouse on Xbox. It's not the full PC equivalent. But it's a start.
If you press the left thumb stick, you can move your cursor around and left click things. Right click does not work in VAB to rotate camera or set fuel limits. But it definitely helps building my rockets.
Also right click does work when flying to rotate camera. Only problem is space bar doesn't launch shuttle when cursor is present. Or keys to enable SAS. But at least mouse pitch, roll, and yaw work with KB.
So again it's a start and makes it a little better to play.
If a dev is reading this, giving full PC controls would be great. Even if you just gave full keybind settings and I could set it up myself, that'd would be cool. I have 100s of hours on Steam, but only a couple on Xbox. Full support would allow me to put 100s of hours on Xbox.