USB as a post processing in Cubase or Nuendo

Hello,

I have both SW, and cannot activate this feature.
I would like to record a dry Chanel and send it to VL2 via USB.
I have the M-Audio Delta 1010.

I set the Digita IN to USB: VOX L\INSR R and Digital Out: Full MIX
I installed the ASIO4ALL, when I choose it at the Device Setup and direct the output sound to that driver, I get no sound.

What do I do wrong?

Thanks
moshik