Vortex Sound Research

I had a look in the manual and didn't see if it could invert using the strength knob, only attenuate. However due to the fact that it can ring mod, I thought maybe I was missing something. I'm looking around for something like Shades/Triplatt/321 and saw a nod towards modDemix as a module that could do those things but with some added flair but can't see about the invert/attenuvert aspect.