The CategoryFilter Element creates a dynamic list of values for a specified datatype-column in a datasource, often from a linked TableElement. It also functions as a filter where by if a user selects a value then only those matching data points are displayed. Multiple CategoryFilters can be linked to the same Element and provide multiple layers of filtering. As one filter is selected all linked CategoryFilters will update showing new totals for values remaining to be filtered.
In this second view the cytoplasmic localization has be selected as to be the only values to be shown and the other CateogoryElements have updated with new values and counts.