Group layer effects change?

I have an image made out of a stack of layers of vector shapes, grouped together. All layers have same (10 px stroke) effect. Is there a way to change it all at once, without clicking and editing every layer effects?

Thanks!

I don't know for sure if there is a way to apply the stroke to all of them at once but you could just drag the effect to the next layer and the next and the next... well you get the point.. that way you have exactly the same effect each time on all layers.

Phantom