F2+M8 MIDI out merge on (Control Surface sends to USB & MIDI out, default)
XL and XR are the Left and Right crossfader bump buttons, respectively.
M2 and M4 are the Mute buttons below faders 2 and 4, respectively.
M6 and M8 are the Mute buttons below faders 6 and 8, respectively.
LED Control Column/Row Codes
Assigning Buttons MIDI Values with SySex