width:460-mm ✕ number-of-knobs:20 ✕ has-loop-button-function:yes ✕ outputs:3 ✕ inputs:2 ✕ weight:4-kg ✕

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).