Changelog
Preview at every width, and put old versions back
See a page at phone, tablet and desktop widths in each language, and restore any older version.
Preview opens over the Studio at three widths, phone, tablet and desktop, and in each language your site speaks.
An older version opens read only on the page, with Compare to see what changed and Restore to put it back. Undo and redo now take back only your own changes, never a colleague's.