You can apply filters to columns to locally filter the data set in the Results section. Since the other reporting sections reference the results set, these local filters are disseminated to these sections.
Local filters are useful for managing your data set. If you do not need all information retrieved by your query, you can use a local filter to exclude data from view. Local filters are useful for temporary or hypothetical situations. You can always suspend or delete the filter to view the data and make it available for reporting.