All changes made to your site's sidebar are backed up and versioned. This allows you to switch to earlier versions of the sidebar with just a click.

1. Click Pages from the hamburger  icon.
2. Select any page and click on the versions icon as shown. Sidebar changes are applied across the site, and so you can revert to earlier versions of the sidebar from any page.
   
   
   
   
3. When you click on the versions icon, you will see the page versions by default. To view the sidebar versions, click the dropdown and select Sidebar versions, as shown. 
4. You can also filter the versions based on whether the page along with its sidebar was published, user saved, auto saved, or simply access all versions by selecting the appropriate option.
   
   
   
   
5. All the changes that you have made will be backed up and versioned, and can be seen with a date and time stamp on them, along with the username who modified the content.
6. Select a version that you want to switch to and click the Restore button.
   
   
   
   
7. In the dialog box that pops up, click Restore if you are confident about switching back to the selected version.