Looks like a fun piece of kit! I was just glancing through the firmware manual to find these parameters you refer to - I'm seeing a lot of hex codes in there but not something that looks like what you mention. Could you provide a page reference please? Are you referring to the control change messages in section 10.1, page 50?
If you are connecting the switch to any of the potentiometer inputs, then yes, your switch would need resistors on it. If it's connecting to switch inputs, then no, it doesn't, you just need it wired to create the correct code.