Touché and Touché SE don't support MPE. This doesn't mean however that you wouldn't be able to use them alongside your MPE controller/instrument:
MIDI Polyphonic Expression (MPE) is a standard that allows you to modulate the timbre and pitch separately for every single note within a polyphonic performance. Since there is no possible way for our device to differentiate which note of your real-time performance or a pre-recorded MIDI pattern should be affected, gestures on the touch-plate of Touché will always affect all the notes you play at once. Technically speaking, the MIDI CC messages sent by Touché (SE) will always affect the whole MIDI channel.