In the companion GUI, I am having trouble finding a preset/shortcut that I can use on my stream deck to play or pause music from one of my inputs. I can certainly find a button to toggle audio on and off from that input, but I would like for that audio to always be enabled or on (I have a fader that I bring down the music with), but I would like to just be able to play or pause music at any moment with a button/shortcut.

I'll just add that I only have one mp3 in this music playback input on a loop. I use it to start and end shows. So I'm not really looking for a button to toggle through a list either, just a play/pause function. Thank you for reading! I appreciate it.