It appears you can’t rename/label the 4 fx faders. When you alter the fx in the 4 slots from default the fader label doesn’t update but still has the default fx label name-which can be quite confusing since it is no longer what the fader label says.It should auto update when the fx are changed at the very least imo. I can’t seem to change it anywhere but maybe I don’t know the process. If there is no process there should be. Also the ability to pan the fx anywhere in the stereo spectrum of Main L/R so say delay is mostly left and verb is right…and a ch eq to each fx slot. Love this CQ20-B regardless.