To modify an applied quick filter:
While displaying a filtered list, click
the filter iconin the Condition Panel.
In the Filter builder window that opens, edit or add the filtering conditions in the same way as when editing an Advanced Filter. For details, see Designing an Advanced Filter with the Filter Builder.
NOTE: When modifying a quick filter, you can base your filtering conditions only on the fields that are currently shown in the grid. The hidden fields are not available in the drop-down list.