Some overlays, for example the Media Editing overlay, have an audible feedback, which works really well. I would be really nice to have this available in the SenselApp as a setting, so it can also be used for custom layouts. It could be an extra checkbox aside the LED checkbox.
Also in the API I couldn’t find this feature, it would be nice to be able to trigger a click sound via the API. There is a separate press and release sound if I hear it well. Maybe in the future there could be even different sounds like a bit more muffled button press, more like a keyboard.