Yes, you can add more than 6 filters based on product attributes. You just need to configure them in WooCommerce > Attributes and then assign those attributes to your products.
hello Perhaps I did not describe it correctly. I need more than the 6 filters on the left side. I also need to select more filters than those shown on the left to create links to the categories. How do I do that?
You can use the WooCommerce Layered Nav widget to add more attribute filters. Go to Appearance > Widgets, add the “WooCommerce Layered Nav” widget to your sidebar, and choose the attribute you want to filter by. You can repeat this process for each additional attribute filter you need.