1. Go to WC Builder -> Filter Groups. From the Filters Information column, click Show Filters. From the list of filters, select Configure Terms.

Or, go to a filter group, click Show Filters in the Filter Configuration meta box, and click Configure Terms to configure a filter.

2. Add the term name and click the Add New … button. Slug is automatically created.

3. A children term can also be created by selecting the parent term.