Make Layer 1 copy: Ctrl+click on Layer 1 and choose Duplicate Layer from the popup menu.
 when you click OK button you'll see the new layer named "Layer 1 copy" Make Apple+Click on this new layer and go to Menu: Select>Modify>Contract...(8 pix)
 Then hit OK button. Again from the menu: Select>Inverse and hit the Backspace. (It is placed over the Return key) Connect the Layer 3 and Layer 1 copy then press Apple+E key combination. |