Using Grids
As explained in master filters, any interaction with a visual will filter the associated grid in the dashboard. Within the grid, there are filters you can also apply to the grid.
By using the magnifying glass in the header, you can search the grid for the desired data. Click on the magnifying glass to define your search tool and type in the box your search criteria.
 | Where you see this icon, this means you can filter the selected field in the grid. |