Photoshop cs5
I have a picture with a lot of layers.
One of the layers I would like save as a separate layer that is not part of the images, for after that to use the stamp tools to "copy" from the new lay and in my original image.
When do I copy a layer which is a self-image?
Layer > Duplicate
and set Destination > Document to New
Edit: Though I may have misunderstood the original poster …
But the intended workflow seems peculiar – could you elaborate on what you are trying to do?