The Power of Gray - The Photoshop: Professional Retouching and Compositing Tips, Tricks, and Techniques - page 158

Figure 2.85
11. Go to Layer > New > Group from Layers, name the group eye , and then press
Command/Ctrl+J to create a copy ( Figure 2.86 ) . Then simply use the Move tool
(V) and drag within the image area to reposition the eye copy layer over the re-
maining eye.