Add buttons to the rim for various actions

As I understand, SmartKnob currently doesn’t have a touchscreen and only has a single button (pressing the entire knob).

It would be great to have 4 buttons on the rim for various actions (menu navigation, etc.). See the image.

These wouldn’t have to be 4 physical buttons in the usual sense, but e.g. tilt detection.

This would turn SmartKnob into the perfect audio and video control device.