How can I access previous saves of my code in the Email Editor?
To access previous revisions of your code, click on the “Revision History” button above the code pane. You’ll see your project’s revision history appear in a window over the Editor. You can browse revisions and look at the design view, code and any tests that were created for that save.
If you want to restore a revision, click the “Restore” button at the top right of the window. None of your previous saves will be lost.
If you want to add notes to a save (to differentiate it from other saves), you can click on the “Notes” field next to that revision and add text.