No, there’s no way to scale/transform mappings in Ableton Live for the mod wheel like you can in MainStage, unfortunately. You can set minimum and maximum values, but not adjust the curve in between.
What Gear do I need?
Troubleshooting Sunday Guitar
My instrument/controller isn't connecting
My Song-Specific Patch is Different from the Demo
Customizing Your Song-Specific Patch
Sunday Keys Version 2
Using the Tonic Pad Player
Getting Started with Sunday Keys for MainStage
Troubleshooting Sunday Keys for Ableton
Getting started with Sunday Keys for Ableton