To add filters to your report, select an attribute to filter, then select values desired and add them to the filter by clicking the [ >> ] button. Multiple filters will be AND-ed, meaning the report will contains rows that pass all the filters.

Note that for fields that use a fixed set of values, a selector drop-down will appear. For fields that can accept free-form text, a text box will appear. To enter multiple values in a text box, enter them on separate lines.