Tekki & I are working on a 3 bank (at this stage) mapping for the Spectra.
Bank 1 is my version of the second "flavour" on Ean's Jam On It for the MF3D. I have removed some features, added others. Most FX utilise super knobs and are more subtle & organic in nature than the typical IG type mappings.
Bank 2 is the Transport section. Includes a beat-phase monitor on the play buttons, Loop active indicator and track end warning in the top quadrants.
Bank 3 is the Browser section
... definitely a work in progress at this stage, we plan on releasing the first version that works on 2.5.1 and 2.6+ very soon!