How do I apply curves saturation hues to only one layer?

[PhotoBoy]

Using the latest CC in Catalina, how do I apply a curve, hue, saturation, color change to only one layer in the stack? Is it select the layer, then go to Properties? But how do I readjust this one layer adjustment?

[PhotoBoy]

Im sorry, I have asked this before and forget what I am told. Not using CC everyday anymore, so I forget. Sorry.

[D Fosse · Accepted solution]

Clip the adjustment layer to the underlying pixel layer. Hold Alt and click between the two layers in the panel.