Impersonation is a feature that allows you to 'impersonate' and control another user. This useful for for account managers and admins who want to see what their user sees. 

To impersonate a user, first navigate to ONE Admin > Admin > Users. Once you have found the user you want to impersonate, click 'Impersonate' under the actions tab next the user. You are now impersonating this user 👀

You will see a bar appear at the header of the page whilst impersonating a user on the site. When you want to stop impersonating the user simply click the 'Stop Impersonating' button ✋

It's worth noting that if you impersonate a user this will track and report under the impersonated user not you, so any videos or pages viewed whilst impersonating will report from the user you are impersonating.