[19.1.4] Curves Custom how to get a more accurate adjustment

Curves Custom how to get a more accurate adjustment?

Good morning.
I am asking if there is a possibility to have a more accurate adjustment with custom curves.
When I am acting with the mouse, I have to be very careful to make millimeter adjustments, otherwise they affect as big variations, sometimes I find it difficult to make fine adjustments.
Thank you

Detach the Custom-Curves window and make it bigger, so you can be more precise.

custom curves.png (164.75 KiB) Viewed 391 times

Thank you very much.