has-loop-button-function:yes ✕ number-of-knobs:19 ✕ thickness:70-mm ✕ inputs:3 ✕ width:620-mm ✕ headphone-sockets:2 ✕

Allow OR queries (select multiple values per filter)

When disabled: selecting a filter value replaces the current value.
When enabled: you can select multiple values for the same filter (OR logic).