MIDI Learn: CC to parameter multiplier/divider/ceiling ?

So, I've one of my Keystep 37's knobs assigned to Fabric XL's "Layer 2 Vol" (I love "Work Layer Hard" caricatural workstation piano layered with simple "Analog Poly"). CC value 127 does map to the parameter's maximum... But that maximum saturates the channel - ugly artefacts. The actual service ceiling is half that, and it is marked with a black line on the instrument's Program Edit UI. So, I have to avoid exceeding 64 - watching the Keystep's segment display as I carefully turn the knob... Not fun while playing.

I would like to either set a maximal value to the CC, or map it with a multiplier/divider so that 1=1 and 127=64. Is that sort of thing possible on MPC, or is the CC's raw value always what the target parameter is set to ?

Writing that reminded me to look into the Arturia Keystep 37's manual, and it has a solution for me - though I'll have to install their "MIDI Control Center" in a VM (Linux shop here), and I would have preferred the customizations to remain all on the MPC side.

Only way I’ve been able to achieve this as flexibly as I need it to be is to go OOTB - send MIDI out to Cardinal (running in Carla on a RaspberryPi) thru an attenuverter to rescale it, then MIDI-learn the reprocessed midi output from Cardinal to the MPC plugin parameter. This particular Pi lives with my MPC solely for rescaling/filtering/pre-modulating my physical controllers as necessary for what I want to do on the MPC. Cheap-ass Blokas MIDI hub essentially.

Nice, but that is too much off-board MIDI processing for me... Complications always tempt me, but I find fewer moving parts better in practice. I guess I'll set value ranges for the Keystep's knobs.

in MIDI control mode you can assign a MIDI cc range (low/high) to the QLink knobs & the XY pad