Push ‘Folding’ Keyboard for Launchpad
I’m looking for some way of getting something similar to the Push’s ‘folding’ keyboard on my Launchpad. Essentially, selecting a key from an extensive list, and being able to use the same finger positions to produce the same chord from different notes. Anything? 
Control surface scripts. You can work around it with a scale plugin but it’s a pain to set up (multiple scale plugins to cover your entire controller for each scale)
twould be this methinks…
http://www.nativekontrol.com/LPC-Live.html
FEATURES
This Preset leaves all of the Launchpad’s default functionality intact and adds 7 additional Modes.
Track Mode - Provides control over the parameters of the selected Track (Volume, Pan, Sends x6) via Button Faders, Increase/Decrease and Reset switches.
Device Mode - Provides control over the parameters of the selected Device via Button Faders, Increase/Decrease and Reset switches.
Clip Mode - Allows you to chop up/rearrange Clips on-the-fly and/or play them Chromatically.
Drum Mode - Provides Drum Machine-like functionality via 3 Sub-Modes; Default, 16 Levels and Sequence. Includes Note Mute, Erase and Delete functions as well as the ability to Step-Sequence directly into MIDI Clips in Live
Scale Mode - Provide access to 40 Scale Types for any of the 12 Root Notes. Includes a variety of available Scale Types covering Common types as well as Exotic and Ethnic types.
Learn Mode - This Mode allows you to learn Chords (up to 6 Notes each) and Notes to the 8 x 8 grid. You can learn the Chords/Notes by either playing them from another controller or by playing them back from a Clip in Live.
MonoSeq Mode - This Mode allows you to monophonically Step-Sequence into MIDI Clips in Live. It provides control over the Pitch (quantized to a user-defined scale), Velocity and Length of the steps in the sequence via Button Faders and randomization.
Global Controls - This Preset also includes Global Controls (accessible from any Mode) for navigating Live sets, adjusting Global/Record Quantization settings, controlling Transport, adjusting the current Clip’s Transpose/Detune/Loop settings and more.