Someone at the PSRTutorial site made the following BRILLIANT suggestion:
You can try to connect Midi A in and midi B out with a midi din cable
No need for a expensive midi cables, you can use the normal 5 pole din audio cables
use the midi usb in for the software on the computer
only if you have both midi din and usb midi
The replay goes then in song mode
Then you can add more effects
You have to make a midi setup To mute the style parts and left richt 123 to avoid feedback
Now THIS is something that developers can seriously ponder upon... Just imagine the new possibilities as you can now apply FULL DSPs to ALL style parts!!! Styles can then be sold as registrations that apply the correct DSP settings to each midi channel for each individual style.