Copy and Paste blend modes and opacity
Not only can you copy-and-paste layer styles from one layer to another, but you can also use the same method to copy blend modes and opacity to multiple layers. Just pick the layer that has the blend mode and/or opacity setting you want, and Control-click (PC: Right-click) on it and choose Copy Layer Style. Then select all the other layers you want to share the same setting, Control-click again, and this time choose Paste Layer Styles.
I have used your trick and am having a problem. If I create a new layer and want different layer style, when I change the settings all the previous layer change also. I want to leave the old layers as is, but change settings for the new one. I am working with drop shadows in PS7. Any suggestions? Clear layer style isn’t helping either.Thanx