
Audio File Editor settings in Logic Pro for Mac
When Enable Complete Features is selected in Advanced settings, Audio File Editor settings are available.

Warning before processing function by key command checkbox: Provides a warning before carrying out a destructive edit in the Audio File Editor when you use a key command. This gives you the opportunity to cancel the edit before altering the data.
Clear Undo History when closing project checkbox: Deletes the Undo History automatically when you close the project.
Record selection changes in Undo History checkbox: Select if you want to be able to undo and redo selection changes in the Audio File Editor.
Record Normalize operations in Undo History checkbox: Select if you want to be able to undo and redo Normalize function changes in the Audio File Editor.
Number of Undo Steps slider: Determines the maximum number of undo steps that are retained.
External Sample Editor chooser and Remove button: Lets you choose an external application for sample editing tasks. Click the Remove button to clear the External Sample Editor.