Undo
Undo (Ctrl+Z)
Undoes the last action.
Note: By default, Undo remembers all executed actions, thus one can revoke as many actions as necessary. This unlimited multi-level undo queue can be, however, be either temporarily ignored by using Simple Undo instead Undo, or turned off completely by Suppress multi-level Undo/Redo setting in the Settings dialog. See chapter Edit page of the Settings dialog.
Note: Current multi-level undo queue can be automatically discarded upon Save operation, using Reduce Undo/Redo upon Save setting in the Settings dialog. See chapter Edit page of the Settings dialog.
Note: The unsaved modifications indicator is aware of how Undo and Redo are used to revoke actions and responds intuitively. If a state of the document text is reached thru Undo and/or Redo that was last known upon Open or Save operation.
See also Simple Undo and Redo.