This function is known, but – to repeat from post #53 – what I don’t like at all, dragging the mouse pointer across I’m not able to keep the value I started with.
Instead I have to read the start value, drag across and then try to match it, before I can correct in smaller increments. That is really annoying – and could be solved with an additional key.
( see in detail → Turning the graduated filter - #21 by Wolfgang )