The Undo History dialog, which
shows you thumbnails representing the operations you have done
so far on the current image. This overview makes it easier for
you to undo steps or to redo them.
command activates the
Use the arrows for
Redo, or simply click
on the thumbnail, to bring the image back to a previous state.
This is especially useful when you are working
on a difficult task, where you often need to undo several steps
at once. It is much easier to click on step 10 than to type
The “Clear undo History” command may be useful if you are
working on a complex image and you want to free some memory.
Activating the Command