Most devices (if not all) transmit the sustain pedal as controller number 64. You will have to set up a controller mapping to tell NanoStudio that it needs to respond to controller 64, and to tell it which NanoStudio controller to 'move'. NanoStudio doesn't have a dedicated sustain controller but you could map it to Eden's control knob (or an XY pad axis) and then set that controller up to modulate the amp release time.

In short :

- Go to the MANAGE/MIDI page and choose a NanoStudio controller from the list (eg. Ctrl 5. Knob/O2 Delay)
- Tap 'Teach' to enable
- Move the pedal. You should see that NanoStudio's 'learnt' the controller.
- Tap 'Teach' to disable

Check out page 49 of the manual here http://www.blipinteractive.co.uk/downloads/NanoStudioManual%201.12.pdf

Awesome. I thought I might have to do something like that but wasn't sure. Thanks for the help!