System
General
- Disable Out of Stock Products This option will remove out of stock products from store front which means no modules nor Opencart pages will display them
Filter
Filter Url Values Separator This option defines which separator to be used in urls generated by Filter module
Filter Attribute Values Separator This option allows to split existing attributes by a character specified, allowing to use multiple attribute values for an attribute (Opencart does not have this option by default)
Filter Check Options Quantity This option removes out of stock options for products, for example, if a product having option Size S out of stock, that option won't be displayed in filter module
Filter Price Tax Class This option allows you to choose which tax class to apply to Price Filter