Request for simple mod to the standard edition Citation

Could a developer/modder add a simple auto throttle to the Citation that is in the standard edition? Would it be easy to do? Just a button - doesn’t even need to be integrated in the cockpit. Something just to help while you are learning everything else, to have the speed managed for you. Just for a beginner like me! I wouldn’t care if it is a small stand alone window that you type the speed into that you want, just anything to help while you are dealing with learning how to use the Garmin etc but don’t want to fly the props or the Airbus.