As per this report: http://forum.renoise.com/index.php/topic/49384-duplex-pass-unhandled-midi-messages-to-renoise-doesnt-work/page-1#entry355850
As per this report:
http://forum.renoise.com/index.php/topic/49384-duplex-pass-unhandled-midi-messages-to-renoise-doesnt-work/page-1#entry355850