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Correcting mistakes


    If you change your mind or make a mistake, undo your work. You can undo only those actions that alter the project; for example, you can undo an edit, but you cannot undo scrolling a window. Specify the number of levels that can be undone. The default is 20. Specifying more levels increases memory requirements but may not affect performance.

    Note: The Vector Paint effect (PB only) can perform only one level of undo, regardless of the number of levels you set.

    You can also discard changes by reverting to the last saved version of the project. Note that when you revert to the last saved version, all editing and footage imported since you last saved are lost. You cannot undo this action.

To undo the most recent change:

    Choose Edit > Undo. You can sequentially undo as many as 99 of the most recent changes made to the program in any After Effects window, depending on how many undo levels are set in Preferences.

To set the number of undo levels:

  1. Choose Edit > Preferences > General.
  2. Specify a number for Levels of Undo, and then click OK.

To revert to the last saved version:

    Choose File > Revert.