Multislider and MIDI mapping

I think the answer is no to this, but:

I’m working on a B3 model and am trying to get the faders to look like they do (pull out, rather than push out). I’ve got things working fine with multislider, but I can’t figure out how I’d map the drawbars in MIDI in Live. Is there some way of creating a surrogate, etc.?

I like multislider better than live.slider because it works better with the mouse (doing 9 sliders at a time instead of 1) and it also looks like what I want. Does anyone have any recommendations?

I know I could hard code the MIDI cc, but it’d be nice not to…