So it works like this:
The code above will set the name of the CC being used to Intensity, and the initial value to 4 (out of 128) which will give you about 3%
To set the initial volume for the Clarinet and Viola to say 50% use:
label_cc020=Viola Vol label_cc021=Clarinet Vol set_cc020=64 set_cc021=64
Thanks for the note. I’ll remember to set better defaults.