Sonos Speaker Group, Adjustment of single speaker in group

I’ve been trying to find a way for HA to control the sub in my Sonos speaker group, i have an Arc, Sub and two SL’s making a surround set for Atmos.

Within the Sonos app i can locate the group and adjust the intensity of the sub, basically I’m aiming to set up an automation to significantly reduce the sub’s volume at 11pm ( i live in an apartment building with noise limitations after that hour) and restore the sub around 7am daily.

The Sonos integration detects my speaker group and shows me whats playing, i can adjust the overall volume but it doesn’t show all the speakers in the group nor can i see a way to adjust one of them.

Any advice on how to achieve this ? or should this be a feature request type of thing ?