How can end user reset personalization?

Summary:

How can the end user reset personalization changes themselves?

Content (please ensure you mask any confidential information):

Referring to the Sales Implementation Reference, please provide guidance on how to do the below? I couldn't find the steps.

"End users can also revert their changes themselves, but only on a page-by-page basis."

Version (include the version you are using, if applicable):

24D