Just realised this request dates from January 18! Why are you ignoring it DxO? @StevenL
Great request @John-M. Upvoted. To quote myself about the local adjustments equaliser:
The missing piece is a modifier key – it could be shift or option, which when pressed slows the sliders down to 1/5 normal speed. What happens to me now is what some of you have described. I am aiming for Highlights -10 and have to settle for -7 to -14, whatever I can hit which is roughly in the range. Trying to hit a specific number is very difficult. Or Exposure +20, I end up trying four or five times before I get close with numbers between +12 and +36.
It’s all we need to make the equalisers much easier to use. The same modifier key could also make global palette adjustment sliders less sensitive.
Don’t seem to have this feature on Mac.