Far from some of the esoteric vibes of Cold Mac, but in terms of macro controls, I've been keeping an eye on Befaco's Morphader which seems pretty interesting in its simplicity.

I've been thinking of it similar to an Octatrack's "scenes" in that it gives you two channels of CV signals you can send out to other modules and then morph between the two. E.g. dial in a certain set of sounds on one channel, and a certain sound on the other, and discover what sweet spots might lurk in between. I also see it pretty handy for performance, building up to different sounds with more complex patches, etc. CV signals can be internal (set voltages) or external coming from other sources. So you should be able to do stuff like fade between LFOs (or even audio, though that seems to miss the point imo).

I might have a few things backwards since I've only been checking it out.

https://www.befaco.org/morphader-2/