In earlier versions of Tableau, you could mark workbook and views as favorites so that you can easily find important and frequently-used content. In Tableau 10, you can do the same with data
Favoriting and later accessing data sources is very similar to favoriting workbooks and views.
You can favorite a data source from the list view under Content by clicking the star.
You can also favorite it from the data-source page itself.
Note that only published data sources can be marked as favorite. You cannot favorite embedded data sources as they are not reusable. You can always mark the workbook containing the embedded data source as favorite and refer to it that way.
Once you mark your favorite data sources, they’ll show up in the same familiar places where you see your favorite workbooks and views. Click the star in the top bar from anywhere in Tableau Online or Tableau Server and you will see a list of your favorite workbooks, views, and data sources.
You can filter the data sources to see only your favorites in the data-source list view.