B50 volume step with HDMI CEC

I just got my B50 and hooked it up to my TV (TCL Roku TV) via HDMI ARC. The sound is great! However, I found the volume step set to +/- 6 when controlling the volume using the TV’s remote. I guess it means B50 advertises its available volume steps as ~16 steps. I prefer a bit more fine-tuned volume step. Could you add an option to change this setting (e.g. 16, 32, 64, etc) upon the next firmware update?

Thanks in advance!

I did realize though that my iPhone and iPad also do 16 volume steps in total. So maybe 16 is a decent number. I still want 32 or 64 steps maybe…