This Confluence has been LDAP enabled, if you are an ASF Committer, please use your LDAP Credentials to login. Any problems file an INFRA jira ticket please.
The history view will allow the user a sneek peek at a previous panel by hovering over a breadcrumb item
The purpose of this was to allow users to view information on a panel without the need to click on the breadcrumb and remove the other panels. See screenshot below.
Unfortunately the use will not be able to perform any actions on the preview. The preview will disappear after the user hovers off the breadcrumb.