Hi Carlos,
Are you using standard WooCommerce “Free shipping” methods, or are you using our “Advanced: Manual Min Amount” section instead (in “WooCommerce > Settings > Amount Left for Free Shipping > General”)? If it’s standard WooCommerce method, our plugin should pick up the min order amounts for different shipping zones automatically. Let me know if it’s our “Advanced: Manual Min Amount” section – I will need to make some changes to our plugin to make it work for different shipping zones, but I believe it’s doable.