I suppose it may be possible to create something like a plugin that acts similarly to the way code is received in GML on GameMaker.
You could make a plugin that allows you to manually script behaviors and events relating to a specific object. There's probably a way to do that. Whether or not that would be particularly... useful... well, that's up for debate. Honestly, C2's programming system is pretty robust as-is. But I can imagine that implementing such a feature could be done!