1. Hover your cursor over the trigger area on the left side of the screen to open the left sidebar and click the thumbtack icon to pin the sidebar open.
2. Click on ‘Drafts’
3. Click on the desired snapshot in the Drafts sidebar.
4. Click on the ‘Changes’ menu in the toolbar.
5. Select ‘Made since this snapshot’
6. Select how you want to view the changes (’By Type,’ ‘By author’ or ‘By revision color’)
7. Click ‘Apply’