[Kevin Lee]

yes thank you very much for the actions answer.
i’m reli disappointed to hear that photoshop does not support such simple effect but the actions method is praticle enough for my use.
thanks.

[Kevin Lee]

yes I know what are layer masks. Can you provide more details?
Perhaps let me put it this way. How can I create a mask that is exactly the same shape and size as the layer? And when I move / resize the layer, the mask should follow.