The History palette lists each command you apply to the active image. The most recent action appears at the top of the list. The History palette gives you the ability to quickly undo and redo actions applied to the current image. In addition to its basic Undo and Redo To Here functions, the History Palette also offers several additional powerful and time-saving functions:
Selectively Undo any listed action. Depending on which action you undid, actions that were applied after the undone action may or may not remain applied to the image. This is described in more detail in Undoing and Redoing History Palette Actions.
Save a Quickscript based on any number of selected History palette actions, and then run the Quickscript on the current image or another open image. This is described in more detail in Saving and Applying Quickscripts.
Save History palette actions as a regular PspScript file, or copy them to the clipboard for pasting into another script file.
Drag and drop History palette actions onto another image to instantly apply those actions.
Display this palette by choosing View > Palettes > History, or by pressing F3.
To hide the palette, click its Close button in the upper right corner of the title bar, or choose the menu item again, or press F3 again.
By default, the History palette will list the 250 most recently executed commands on the active image. To set this value higher or lower:
Choose File > Preferences > General Program Preferences.
Click the Undo tab.
Make sure the Enable the undo system check box is marked.
Set the Limit undo/redo to n steps per open image to the desired value. As mentioned above, the default value is 250. Steps older than 250 will become undoable steps, only 10 of which will be retained as defined by the next setting.
The Non-undoable steps after the last non-undoable step value, as mentioned above, sets the number of non-undoable steps that will be retained after the last non-undoable step limit has been reached. The default value is 10.
Note: Non-undoable steps cannot be undone or redone anymore. They can, however, be reapplied to the current image or other open images, can be saved to the Quickscript, or as a regular PspScript file, or copied to the clipboard.
Undoing and Redoing History Palette Actions
Saving and Applying Quickscripts