How to move the tone curve

[dmitryg75012865]

Hello friends, sorry for my English.
Need your help!

My question is: How to shift the curve up or down without violating the characteristics of the points of the built curve?

( move all points of the curve up or down, but without changing their position in the horizontal plane?

Maybe there is a magic keyboard shortcut that will move the curve up or down with all the points at once?

Thank you!

[Rob_Cullen]

"A magic kb shortcut?" - Not that I know about.

I can only see a labourious workaround of selecting each point on the curve and adding the same amout to the [Output] figure.

eg.  127/127 would be changed to 127/137

Input = Horizontal Axis.  Output = Vertical axis.

(Curious!- With a shortcut- What would happen to a white point 255/255? )

[dmitryg75012865]

I dont have these "Input/Output" sections under my tone curve  

[dmitryg75012865]

Lightroom Classic 8.4

[Rob_Cullen]

I do not have v8.3 to compare, but TBMK - You do not have the "Input/Output" boxes below the curve window.

Can you check - When you select a point on the curve line with the cursor, do you see the 'numbers' appear at the top of the curve window?

You should be able to get a visual of the numbers, and so to raise points watch the 'output' number rise as you move a point upwards.

I am not really sure exactly what you are trying to achieve by raising the whole curve! Can you explain your reasons?

[Rob_Cullen]

Deleted copy post.

[GoldingD]

Not at a computer to rest. I think, if you have a point, then press down on the shift key and mouse click/drag the point.

[Rob_Cullen]

Thanks @GoldingD  yes, the [Shift] key locks the movement of a point on the curve to the vertical only, so the mouse cursor can only move a point up/down, and not left/right.

Also (in v9.4) when I place the mouse cursor over a point (highlighting the pin), the keyboard up/down Arrow keys become active and each press of a key raises/lowers the point by '1'.  Holding down the [Shift] key and using the Arrow keys raises/lowers the point by '2' (curious!) ..