How do I get BTT to show app default info PLUS a few other options

I played around with Golden Chaos a year or so ago and got the bar to show the things I needed the most (escape key, emoji list, mute, and Do Not Disturb toggle), but gave up trying to add a "play, skip, repeat" buttons for music (like the old F1-12 keys used to do).
With my new M1 Mac no need for escape so it looks like this:

Is there a way to add the play, skip, repeat buttons to my bar?

Also, is there some way to put whatever the "default" non-BTT content is in the big empty space?