Hello John,
I see you are extensively testing and writing FR’s. Maybe I will benefit from it, if DXO ever fixes all the little bugs and inconveniences and I decide to buy version 7 after all. Doesn’t look like it at the moment, but never say never. 
The easiest way would be to finally implement this FR User assigned keyboard shortcuts - DxO PhotoLab / Feature requests - DxO Forums. At least for everything that can be switched on and off or toggled.
This would be a one-time effort that would last for the next versions and make everyone’s life easier in the near and distant future.
I wish you further happy testing and a nice time.
Best wishes from the other side of the globe
Günter