Use story filters to narrow the scope of your analysis. Story filters allow you to apply filters for all charts in a story that are based on the same model. They are used for specific dimensions or measures and can apply to all components of a story.
While defining a widget in the Builder pane, you can pre-filter the data that the widget displays in the Filter area.
A data source for a chart or table may prompt you to select dimension members before data can be displayed. If the data source you select to create a chart or table has prompts or variables to be set, a prompt will appear when you create the first chart or table that uses the data source. After the responses to the prompts/variables are set, the information you provide will be used by all tables and charts that use the same data source.