I'm using WP User Frontend for my WooCommerce products and I need to allow users to edit the SKU (Stock Keeping Unit) of their products from the frontend editing form.

I've checked the available fields in the form builder (even in the PRO version, as I've tested it) but I don't see any specific option for the SKU field.

Is there any option or way to add a field to edit the SKU of WooCommerce products?