Possible to get FX Loop AND processed signal over USB?

[JustinAiken]

I'd like to put a whammy/drop pitch block before the FX loop, so that I have a "dry signal" that's droptuned, but dry otherwise...
But is it possible to get that signal and the final output at the same time over USB?
Or am I forced to choose between fx loop and processed for inputs 1-2, and 3-4 is just hardcoded to unprocessed?

Reading the manual and poking around it seems like it's not doable, but maybe I'm missing something..

 

[Bakerman]

Do you need to record a stereo processed signal? The only solution with no extra conversions would be to balance the signals L/R as channels 1/2. One other option if you really had to make this happen w/ 3 channels:

Set Input 1 Mode to stereo, then send one channel (possibly processed L or R to avoid adding noise to dry signal) out of FX Loop to Input 1R. Now you have that signal as channel 4. Place a vol/pan as first block in preset w/ input select = left to isolate the guitar (instr. input) signal.