How to "Undo" further steps in Final Cut Pro X
You can undo whatever you did since the last time you have opened the app. Further than that you will need to get a backup version of that &quot;library&quot; (meaning the file project in Apple's brain) located in your backups folder, defined in the Library Properties panel. Also it is a good idea to snapchat your &quot;projects&quot; (meaning the timeline/sequence) from time to time, so you have older versions.