thank you for the quick answer, It's pretty sad It cannot be done, PSR-S700 is not particularly cheap, I should have bought PA-500(now for sale for $1200 or even the OR700 for around the same price, currently PSR-S900 is out of my league. I'm truly disappointing about this limitation, will have to hook it up to my motif rack xs to get more voice selection when I play live. Will see how this goes. After all seems like we have to pass the $1700 mark to get something decent here.