Any of the following editing operations that produce a change in the script can be undone.
Insertion of a series of characters
Insertion of a block of text from the Clipboard
Deletion of a series of characters
Deletion or cutting of a block of text
Important: You can undo the last 100 operations.
Do either of the following to undo an editing operation.
Click Edit>Undo on the Program Editor menu bar.
Result: The script is restored to the way it looked before you performed the editing operation.
Note: Operations that do not produce any change in the script and cannot be undone include:
Moving the insertion point
Copying material to the Clipboard.
2. Text procedures.