Messages

Hi There, I have a canon 7d Mark 1 and I have managed to get it to stream to facebook with the miniusb to usb on my macbook pro via OSB software, now what I would like to do is stream to facebook as per above and also have a live feed via the hdmi to a projector, it seems I can only have either the hdmi or the mini usb plugged in at once as the miniusb takes precedence... Is this possible perhaps with ML? can you think of another way to do this? i.e an hdmi splitter? OR perhaps a splitter for the miniusb?