REVISED:
I need a byte injected into a SYSEX command, where the value of the byte is provided by a super control.
I have tried using a channel changer, but as the value I need is either 50h or 60h, Midi Designer crashes when I try to set the default mid value to 50h. That makes sense though as the value I want is outside the range of 1-16 that a midi channel would use.
A midi command might look like this:
41 00 00 00 1C 12 60 00 20 14 V
But be changed to this
41 00 00 00 1C 12 S 00 20 14 V
S would represent the current value of the super control.