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At any point in your search, you can click the "+Save as Scope" link at the top of the page to save your current search and selected refiners as a Search Scope. It will open the Search Scope creation window with your current search pre-populated. Provide a name for the scope and click “Save”.
Also you can create new scopes by defining them in User Management tool:
In User Management you can also change the order of the Scopes.
To change the order click and drag the scope into the position you want.
