seperate sample output

hi

I have the optional output board which makes it possible to separate the 4 audio tracks to different outputs.

I assign the sample pads to the track faders and hoped it would be possible to seperate the samples to different outputs that way. But it seems it doesn't work.
I'm only able to send the pads all together to the single master output.

Does one no if its possible to seperate the samples to the different outs ?