This example gives you eight toggle and eight "mutex" key bindings.
Mutex:
Use the top eight buttons (nearest the USB connector) to bind your scenes.
The light on these is mutually exclusive- the one you last pressed should light up.
This is the scene you should be broadcasting.
Toggle:
The bottom eight buttons will toggle on/off, emitting a slightly different keycode
for each state. This means they will always indicate the toggle state.
Bind these to Mute/Unmute audio by pressing the key once in Mute and once again in Unmute.
Keep OBS focussed when using these... to avoid weirdness!