# login to Admin Console
# go to {nav Configuration > Website > Advanced} section
# enable `Enable Revision Control for Section Content` setting and save changes
# go to {nav Website & Content > Browse Website} section
# click on `Content Mode` button in top frame
# confirm, that CMS toolbar is shown
# if orange `Editing Draft (pending)` text is shown on the toolbar, then press `Discard` button
# confirm, that green `Viewing Revision ...` text is shown on toolbar
# make some changes to the content block on the page:
* click on `Edit Content` button
* change content block data
* press Save button (in popup/modal window) to save changes
* confirm, that green `Viewing Revision ...` text was changed into orange `Editing Draft (pending)` text
* press `Save` button in CMS toolbar
# repeat above steps 3 times to populate revision history dropdown
# click on `History` toolbar button in CMS toolbar
# confirm, that dropdown with all page revisions (including current revision) will appear
# click on any revision (the link part)
# confirm, that selected revision was shown almost immediately (no visible delay)
# click on any revision (the non-link link part)
# confirm, that selected revision was shown almost immediately (no visible delay)