+1 on this. IMO this really needs to be sorted. Why give us so much access to parameters and then suddenly limit certain ones?? And it isn't even consistent to all buttons...I have the Jupiter 8V as well and some buttons CAN be controlled through automation/Automap, but again not all of them.
This makes sound design/editing a much less fluid experience with less chance of the 'happy' accidents one can so often happen upon when twiddling hardware.