How should I set the DJ application's audio settings when the mixer mode is set to the "XDJ-RX2"?

When the mixer mode is set to the "XDJ-RX2", two channels worth of the DJ application's sound can be input to the XDJ-RX2. Set this as shown below.

Windows
To input to channel 1 on the XDJ-RX2:
-L: PIONEER XDJ-RX2 OUT 1
-R: PIONEER XDJ-RX2 OUT 2
To input to channel 2 on the XDJ-RX2:
-L: PIONEER XDJ-RX2 OUT 3
-R: PIONEER XDJ-RX2 OUT 4

Mac
To input to channel 1 on the XDJ-RX2:
-L: PIONEER XDJ-RX2 OUT 0
-R: PIONEER XDJ-RX2 2OUT 1
To input to channel 2 on the XDJ-RX2:
-L: PIONEER XDJ-RX2 OUT 2
-R: PIONEER XDJ-RX2 OUT 3