This component contains wizards, deployment advisors, and setup guides for various Office 365 products. Clicking directly on the header takes you to an overview page containing all of the wizards and guides. There's an option in the component and in the overview page called Setup guidance, which provides even more detailed guidance on setting up your Office 365 services, and there are direct links to the various setup guides and wizards that you can scroll through from directly within the component.
You'd expect that such extensive setup guidance would be accessible from the sidebar navigation, perhaps under Setup, but as of the time of writing, the dashboard component seems to be the only way to access this.
