1. Stamp Tool
Stamp area zoom, the right mouse is alt-slide around +
When multiple layers to wipe the picture, sample, select "All Layers"
2. "Slice Tool" under the crop tool
To cut a picture into a multiple pictures, the first method: select "Slice Tool"
a: Click the slice tool, draw a rectangle cut like a few.
b: and then "storage format used for web" under file
The second method used scale:
