The disappearance of my edits to the Studio Set was the result of my blowing up a circuit breaker by plugging in a heat into an electrical socket while the Integra was on and plugged into the same circuit. I fixed that.
However, it occurred to me that rather than create a dedicated Midi track in which to enter these two events:
Control event, Controller number 0, Value 85
Control event, Controller number 32, Value 0
I could simply create a Sysex file that automatically loaded into a sequence that did the same thing. However, I have forgotten how to create such a Sysex file for the Roland Integra. Can anyone help?