Add Selection Filter Widgets to Dynamically Filter Dashboard Results | Salesforce
Selection filter widgets allow dashboard viewers to select the filters that they want to apply on the Wave dashboard. These widgets can filter the dashboard results based on measure, date, and dimension fields. For example, you can add a List widget to allow viewers to select the region on which to filter the dashboard results.
You can set an initial filter for each selection filter widget. For example, you can set a date widget to show last year, by default. When the dashboard viewer opens the dashboard, the dashboard shows results only for last year. If the step is faceted, other widgets are also filtered to show results only for last year. Unlike with a global filter, a dashboard viewer can change the selection to filter the results differently or remove the filter altogether.
To enable a selection filter widget to filter other widgets, you must enable faceting on its step.