Here's my control surface script for the SoftStep 2: https://github.com/kmontag/modeStep
It has transport and utility modes, device modes with various control types (pressure, XY, up/down increment), and multi-track modes with arm/solo/mute/clip launch/etc.
It's pretty configurable, including on a per-set basis. You can change the layout or overlay alternate controls in any mode. You can also set it up to switch in and out of your own setlist presets.
Give it a spin if you're keen.