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Norm Stenzel, TCS's national rep and all around DCC decoder guru, provided us with the following info for the WOW and programming Ditchlights. Please note we've also provided values for rear ditchlights found on many Norfolk Southern.

Front Ditch Lights (on in Forward - Green & Purple wires Button 0)

CV35 = 1 - Green wire mapped to button 0-For
CV36 = 1 - Purple wire mapped to button 0-For
CV51 = 10 - Green wire set to Left Ditch Light in FOR
CV52 = 11 - Purple wire set to Right Ditch Light in FOR

CV124 = 8 - Maps Ditch Light Blink to button 2

Rear Ditch Lights (on in Reverse - Brown & Pink wires, Button 0)

CV39 = 2 - Brown wire mapped to button 0-Rev
CV40 = 2 - Pink wire mapped to button 0-Rev
CV53 = 26 Brown wire set to Left Ditch Light in REV
CV54 = 27 Brown wire set to Right Ditch Light in REV

CV124 = 8 - Maps Ditch Light Blink to button 2