This theme has only a button on the whole webcmoponent surface. It is intented to be used as standalone, without cpu-controller, playlists or even chapters.
Small little problem : me must take the click event on the button to the “play or pause” trigger. We have a trigger named "toggleplay", so the whole button got its ID.
I miss to add a discreet timeline, not clickable or hoverable. But it's up to you ;)