John, without having the keyboard directly in front of me, I'll have to provide the best information I can from off the top of my head.

Press the Mixing Console button twice, this will open the page that allows you to select the the various components of the style itself. To change that instrument, press the button adjacent to the "Voice" line, then using the 1 through 8 buttons at the bottom of the display, select the individual instrument. At this point you can tab to effects, and make an changes you wish. You can then select the Digital Recording/Style Creator, make additional changes, press execute, press save, the provide the style with a User/Third-party name and save it to the user area, either on the USB drive, or internal memory. Keep in mind, though, that the internal memory area is quite limited in size.

Hope this helps,

Gary