Settings
Allows you to customize the Reader dashboard by selecting the message you would like to greet your readers with, selecting your logo, and the functionality that you would like your readers to have access to. Finally, it allows you to specify the URL where you would like your readers to be taken if in need of help or when they log out.
Pages
Allows you to add pages to the Reader dashboard, such as pages with extra information, internal processes, or images that you would like your readers to have easy access to. Access to such pages is restricted by role.
If you need more information on how to use this function, read Can I customize the Reader Dashboard screen?