This has been asked in other more general threads, but I have not seen a definitive response as to whether this will be handled by either the R1 or in the Remotebox app, or even possible given the R1's CPU capability.
A number of folks have asked for this capability, especially native on the R1 itself, but it seems more natural to bounce the waveform into the app and let it handle the feature (though I thoroughly despise having to carry extra hardware to a gig, having the x-y pad effects is pretty cool and better than my old kaoss which I stopped using so there's that.)