Here's a personal Lemur project I put together that I thought I'd share, in case anyone else has a similar need.
It was built as a tool to aid in playing chord progressions with foot controllers - primarily providing the ability to increment through multiple chords or short one-shot sequences from a single trigger - with 8 triggerable tracks. It has an extensive device manager and allows you to store up to 48 presets.
Also added some specific features that make use of the SoftStep display and LEDs for monitoring progression status.
Requires Lemur and an iPad.