Yes. New in Visual Analytics 8.2, you can filter a visualization from one data source by a filter control, or another visualization, that does not display the mapped data item(s). Most controls and visualization types in VA 8.2 support a new hidden role. For the mapped data item(s) that you don't want to display in your drop-down control, visualization, or both, be sure to include the mapped data item(s) in the hidden role for the control, and for visualization if you don't want to display the mapped data items there either.
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