I find that, for ergonomics and ease sake, it would be very nice to access the MixConsole Left Zone - from the left side of the MixConsole.
In my particular setup, this flaw is exaggerated as my MixConsole spans two monitors, my mouse and eyes must move to complete opposite of my workspace to access a option on the other.
Before Cubase 9 this issue was not as bad, I actually preferred the Cubase 8 MixConsole options, ergonomically speaking.
thx