Undoing and Redoing
You can undo and redo as many operations as you like, even after saving the file. The only limitation is the available hard disk space.
When undoing or redoing any operation in the Audio Editor or the Audio Montage window, the zoom factor, cursor position, scroll position, clip selection status, and time range are restored to the state before the operation.
To undo or redo an operation, click Undo or Redo in the title bar of the Audio Editor or Audio Montage window.