I don't have the time to work on it anymore.
That feature was actually quite complicated and very time consuming, which is why it was never completed in the first place. Only a fraction of the code was actually completed.
If the source code wasn't such a mess i'd release it as open source, but hacking a new feature here and there turned the code into a total mess. It would probably be faster to re-write the existing code than to clean it up, that's how bad it is.