Adobe 29180155 - Photoshop Elements 4.0 User Manual page 39

Note: Revert is added as a history state in the Undo History palette and can be undone.
To revert to a previous state of an image
In Standard Edit or Quick Fix, do any of the following:
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Click the name of the state in the Undo History palette.
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Drag the slider at the left of the state up or down to a different state in the Undo History palette.
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Click the Undo or Redo
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• Choose Undo or Redo from the Undo History palette menu or the Edit menu.
To set the keyboard command for Step Forward and Step Backward, choose Photoshop Elements > Preferences >
General, and choose from the Step Back/Fwd menu.
To delete one or more states from the Undo History palette
Do one of the following:
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To delete a state, click the name of the state, and choose Delete from the Undo History palette menu. States
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following the one you selected are also deleted.
To delete the list of states from the Undo History palette, without changing the image, choose Clear Undo History
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from the palette menu or choose Edit > Clear > Undo History. Clearing is useful for freeing up memory, especially
if you get an alert that Photoshop Elements is low on memory.
Note: Clearing the Undo History palette cannot be undone.
To clear memory used by the clipboard and the Undo History palette
You can delete items copied to the clipboard or states in the Undo History palette to free up memory.
In Standard Edit, do one of the following:
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To clear memory used by the clipboard, choose Edit > Clear > Clipboard Contents.
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• To clear memory used by the Undo History palette, choose Edit > Clear > Undo History or choose Clear Undo
History from the Undo History palette menu.
To clear the memory used in both the clipboard and the Undo History palette simultaneously, choose Edit >
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Clear > All.
Note: Clearing the Undo History palette or clipboard cannot be undone.
To restore default preferences
Preference settings control how Photoshop Elements displays images, cursors, and transparencies; saves files; uses
plug-ins and scratch disks, and so on. If the preferences cause unexpected behavior, the preferences file may be
damaged. You can restore all preferences to their defaults.
Press and hold Option+Command+Shift immediately after Photoshop Elements begins launching. Click Yes to
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delete the Adobe Photoshop Elements settings file.
A new preferences file is created the next time you start Photoshop Elements. For information on a specific
preference option, search for the preference name in help.
buttons on the shortcuts bar.
ADOBE PHOTOSHOP ELEMENTS 4.0
User Guide
34