Tony/Gary: The setting volume to zero/turning off the part got me close.

Tony: Great hit from "left field" muting the voices was a good idea similar to Gary's suggestion but with the same limitation.

Gary: I tried setting style volume to zero and turning off the parts. They both work with a limitation. If you switch to the registration with the style volume/part off the style continues to play although not sound. So when you switch to the next registration it might not start at the beginning of the measure but were ever it is in the measure from the 1st registration button.