I've never had one of these in front of me so I am unsure if there is an easy individual effect bypass method.
I think the first place to look would be to the Intellifex Online user manual at the Controller Assignment section under MIDI Operation. This looks to be where you would assign the Control Change number to a "Parameter"... what the manual doesn't seem to show (at least not that I couldn't find quickly enough

) is exactly which parameters are available here. If I had the Intellifex Online in front of me, I'd pop into this menu and scroll thru the parameters to see if anything looked like a useful way to bypass an effect type.
Let us know what you find!