WooCommerce Product Filters & Search

Category filter: Be able to select a specific categories (instead of excluding all the categories we don't want) + be able to select subcategories. Example: if we have the following categories & sub-categories: - Category A: + Sub-categories: A1 / A2 / A3 - Category B: + Sub-categories: B1 / B2 / B3 - Category C: + Sub-categories: C1 / C2 / C3 --> Have a filter that would only show the results B1, B2, B3