I agree with your suggestions for the Viveza UI, Pierre - but, as I know you’re a PhotoLab user, I’m curious … Why would you need to use Viveza when you have PL Local Adjustments ?
I don’t use Vivaza normally. I recently familiarized myself with it to prepare for a Nik Collection Workshop that I will conduct for a photo club. I cannot think of a reason to use it from Photolab