Is it possible to select and move several points on a curve simultaneously? On the Photoshop curves dialog you shift-click a number of points on a curve, then dragging moves them all together. This is useful for, say, lightening or darkening a whole curve that you've otherwise got right shaped right. Can I do this with CM? Seems not, unless I'm missing it.
I have no P.S. but PSE4.0 with no direct curveoption.
So PS works different then CM.
I don't understand the use of your goal. You can pul , a curve in CM, how you like it.
But seeting a spot blocks that spot area when you not touch it an pulls another spot, you see the curve distort.
With other words, you can do a lot with spots on the curve.
You can mark out a area and several areas. You can set each spot and delete him.
The distance between 2 spots is a area , you can manipulate this area.
There are many possibilities in each curve.
Play with it, and you discover it.
Frits