Hello,
Sorry to say that, but it is not directly possible in theme settings to change the extra description position because category pages are functional WooCommerce pages and are not editable directly.
You can change the position of only the main description of the category, Theme Settings > Product Archive > Category Description Position: https://ibb.co/p1cpLK2
However, you can use the WooCommerce builder of WoodMart, allowing you to create custom templates for WooCommerce pages > then you can use the category extra description widget to place it above products.
WoodMart WooCommerce builder is the built-in functionality widget included in the builder you use on the site. You can create a custom layout in the page builder as per your needs.
Here is the documentation: https://xtemos.com/docs-topic/woodmart-woocommerce-layout-builder/
Best Regards,