Open UI Page Tools
A page tool can, for example, show extra information about the page that is visible in the Experience manager.
Read more on how to configure a page tool and how to develop a page tool, and follow the Develop a Custom Page Tool tutorial.
By default page tools are available to users in the webmaster group.
When at least one page tool is configured, a new menu item appears in the Experience manager:
When selected from the menu, the tool(s) are shown in the right side panel: