Hello, in the latest weeks I've been writing a filter/mapper for Novation Launch Control XL. It allows you to create custom configurations assigned to its templates, select which midi device send any controller to, and even filter/modify the incoming MIDI event using mididings units. It's still a work in progress (so, bugs!), but it should be stable enough for now. The program is called NoLaE and requires python 2.7, PyQt4 and mididings. The project page is here: https://github.com/MaurizioB/nolae If you own a Launch Control XL and would like to test it, I'd be happy to have some feedback. Thank you! MaurizioB