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, look at the design view, and add notes to any revisions.
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.