Thank you!
I mainly used AirPlay for streaming so I managed my queue in other apps than the B&O app. I thought I overlooked the functionality or it was another hidden long press, but apparently not…
Standby doesn’t seem to help with Theatre. A workaround for now is streaming one song via another source (i.e. Spotify Connect or even Tidal Connect), you won’t see a queue anymore in the player screen. When you then use the integrated Tidal source again it has created a new queue.
Haven’t tested this but might work with Deezer as well 🙂