Lightroom Classic is a great photo editor, but it can be difficult to undo changes. Here are some tips to help you undo in the program:

  1. Open the “Undo” tab in the “Edit” menu.
  2. Click on the “History” button to see how many changes you’ve made to your photos since you last edited them.
  3. To undo a change, select it from the list and click on the “undo” button.
  4. To keep track of your changes, open a new file and save it as “History_0”.