SHort cut to unfold/fold Group tack folder in mixer view?

Hi everyone,

I was wondering if there’s currently a way to quickly unfold or fold Group Track folders directly in the Mixer view. As far as I can tell, there doesn’t seem to be a shortcut or even by midi, which makes managing larger projects a bit slower when working in the Mixer.

Maybe i just could not find, but if not could we suggest to add a short cut for it ?

Many thanks

up anyone ? thank you again