Just a simple 4 deck mapping with Traktor controller feel. There's no midi for LED output, so I use a knob for A/C and B/D deck switch. Turn deck knob to left side for A and right side for C, same as B/D. ****Be careful not to hold down the left side loop set encoder too long or the "MIDI SHIFT" mode will activate and midi channel will change. If it happens hold it down again to switch back to normal.