The Quick Launch Pane
The Quick Launch pane is visible on the left-hand side of the interface, and contains links to the site’s most commonly accessed content:
Here, you can see the default links added for a team site: Notebook, Documents, Site Contents, and Recycle Bin. You can click Edit Links to customize your Quick Launch pane for this site.
The Quick Launch pane can be customized by clicking on the Edit Links. Or, if you go to site settings, and click on the navigation link.
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