We browse the forums as we're able to on top of our other duties, but we can't always guarantee that a person from a given team will see a post. In this case, someone saw it, but I'm not on the OmniGraffle team and I'm not sure if there's a way to do this. If you email the
support ninjas, though, you're guaranteed a response from someone more knowledgable than I. Sorry I couldn't help directly, but hopefully this still helps. :-)