So, what you want to do for each button is this: 1) Assign the MIDI button to your effect preset trigger (e.g. button "1") 2) Assign the same MIDI button to the emply effect preset trigger (in this case, button "12") 3) Click the Advanced MIDI mapping button, and then click the Invert option This will cause the following to happen: When the button is pushed, the effect preset will trigger. When the button is released, the empty preset will trigger. You can assign multiple MIDI controls to each button, so you can have all 11 buttons trigger the empty preset when they are released.
