Can't replicate complications Play/Pause button and Timer

complications off
complications on

Hello, I noticed on official watch face we can have a play/pause button that is not a shortcut to the player controls and a timer that displays time left when activated.
I can’t seem to replicate this behaviour on Watch Face Studio.
How can I do this? Thank you.

Seems you need to develop a companion app for this. Not sure is it possible using Watch Face Studio or not. You can change the play and pause button by using the action feature. But change the timer respectively, I don’t know how.
May be someone from this forum can help you.