As with any other chart type, you can still apply filters to an Analytics chart by clicking the Filters tab in the Edit Chart screen.
To create a new filter, click the ‘Add’ icon. You will now be able to choose which of the data objects you want to filter on and specify the comparison criteria.
For more information on creating filters, please refer to this section in the pi Learn.
You will not be able to specify an Analytics chart type as a Parent Chart.