You can, but its important to know how the paraphonic sequencer works.
When in paraphonic mode, the sequencer makes track 1,2,3 and 4 into note tracks. So when you are recording paraphonic it is actually inputting individual notes to those 4 tracks. So each track has a line of individual notes. When the sequencer plays it plays those tracks at the same time so you hear it as multiple notes at the same time.
So if you want to send polyphony from the pro 2, you have to send individual tracks to the same destination.
Does it make sense?