Send to decoder programmaticaly from extensions

There are methods in IBurpExtenderCallbacks for sending data to - repeater, - intruder, - comparer, and - spider. Why isn't there one for decoder? When writing a custom message editor with a custom editor widget, it'd be better to be able to offer sending a selected chunk to the built-in decoder instead of reimplementing it, poorly. Just like there's already void sendToComparer(byte[] data); it could be void sendToDecoder(byte[] data);