This means you could set up 32 MKS-7 patches by setting the BC controls default values to the patch value.
When you select a new BC preset these default values would be output and the MKS-7 to set up the new patch and would be in sync with the BC.
It would involve the BC sending more sysex data than the synth's packed patch sysex, so it would take a little longer. So swapping patches between notes might be tricky. You will have to try it to find out.
Any changes in the position of the encoders or buttons made live are remembered by the BC when changing patches. So if you change back to a patch you have been playing with, the values sent out will put the synth back in that modified state NOT the default settings.
To get back to the default settings you have to power cycle the BC (turn it off and on again).
Either way the synth remains in sync with the BC.
All the best
Royce