Sort of -
Split your amp model into two; define one input as "variax" and the other as "variax mags".
Then, using the mixer block, pan them left and right.
The issue you are going to then run into is the output modes. You might be able to work around this by defining the DT with the L6Link as the amp model A only; and then using the Studio/Direct mode so the XLR sends are "PA" / mixer / recording-friendly.
I've mucked about a little bit with that idea; particularly attempting to split the variax and variax mags. I wanted to run the mags side out the FX loop into some pedals, and use the variax side for the acoustic models and be able to toggle between them or have both on at the same time.
Then I tried a different idea, I ran the 1/4" out from the JTV into some outboard pedals, then into the HD500, and also used the VDI cable to the HD500, and defined that signal as 'variax mags'.
Not sure which of any of these paths worked best, overall I just struggled with DSP limits, and getting the two amp models to level properly, stuff like that.