Reply to echo efx question...

Hey guys-

I am using the 1.7tsi with my djtt vci-100 arcade edition, I watched the video posted today and was trying it out and here's the thing. When i am in advanced(single) fx mode the first button does not control turning the fx off and on, it doesn't do anything. turning the first knob is the only way to turn the fx of and on. Am i missing something? I have zero midi mapping skills whatsoever and havent messed with the mapping.