It would be great to be able to define custom transfer curve (bezier) for each parameter that is mapped to the macro knob (instead of just mix/max range with linear curve). In this way we could define exactly how each mapped param reacts to macro knob movement - this would make it possible to create complex multi-effect knobs that control effect params in very specific way allowing for real deep exploration and unexpected results. I do such things in Alchemy with modmaps and it's mind blowing what results you can get when one knob control many different params in specific way - multiply that by 8 and you have some serious sound mangling tool (really unexpected stuff in terms of sound exploration leading to very unique and rich palette of sounds). I wish we could have this in racks and maybe even for other modulation sources like envelopes and lfos.
Current min/max solution is very limiting and doesn't offer much for making sophisticated parameter control. Additional curve would actually allow to set up some kind of logic between controls as well.
I found a maxforlive solution for this here
http://djtechtools.com/2012/02/16/mapul ... r-ableton/ but it doesn't work in 64bit

Besides it would be better to have dedicated native solution in Live for this.
Cheers!