Toggleable auto-centering of pitch and/or heading

Toggleable auto-centering of pitch and/or heading, possible to set separately for any of them or for both and with customizable value it automatically returns to after player stops pressing pitch/heading buttons on keyboard. Of course all of this should be customizable both mid-flight and in designer.
That would make it easy to make rovers which actually drive in a similar manner to typical game car controls (w/s for engine, a/d for steering - with both scales reverting to 0, if no key is pressed), but without sacrificing other cool control options (like using thrust scale to permanently change engines speed and setting predefined heading to keep direction without user input as well, which both are really useful during longer trips).