Once a student has submitted their final version, I would like to send them some feedback with a score, what they did wrong, some notes on code style, etc. However, I can't find a way to send feedback except clicking "send back", which is not exactly what I want to do.
Hopefully someday Github integration will allow me to somehow comment directly on various lines of code (maybe treat each student's submission as a pull request). Until then, is there some feature I am missing to give feedback? I guess it does not really hurt to just click "send back" anyway, so maybe it is not that big of a deal.
Edit: I just noticed that I could probably do this if their assignments weren't already marked as complete. But I have set up automatic unit tests, so some submissions are already marked as completed, but passing the tests doesn't mean I don't have feedback to give.