Yeah, it depends on how the model in the MS-60B works, I'm not familiar with it having long ago sold my previous gen Zooms (and I think I recall Owen saying he couldn't get the same effect out of the B3n?).
You could definitely set up a pseudo double tracking effect using subtle pitch-shifting and delay, there's probably even a dedicated effect for that purpose that has some simulated drift in the values applied, like the TC Mimiq. But if the required effect is that of simulating the tone of an analog octaver, which sounds like a synth, but without the octave down, that is a bit niche (the FEA Growler is the only thing I know of that does it, but it's rare and discontinued). You might be able to take the output of the EBS Octabass sim and put that through a natural sounding octave up if you can deal with the latency!