Is there a single-select Checkboxes facet type?

A Checkboxes facet is multi-select by definition. There is currently no direct way or setting to make it single-select. An option would be to use a single-select Radio facet instead, and change its radio icons to checkbox icons with a few lines of CSS. However, keep in mind that a Radio facet cannot display a hierarchy of choices, like the Checkboxes facet can (with its Hierarchical setting enabled).

See also

• The Checkboxes facet type
• The Radio facet type