Request for rates based on the product shipping class

I really like your plugin. The only thing that is missing for us is the ability to assign shipping classes for multiple flat rates. For example, we have 4 Per Country Rates based on zones and Rest of the World. We have 3 shipping classes: free-shipping, standard-shipping and extra-shipping for large products. The plugin handles free-shipping and standard-shipping rates well. It would be nice if I could add rates based on the product shipping class, similar to how WooCommerce International Flat Rates work. I know this is asking a lot, but I figure it can’t hurt to try. If you would like more information, please let me know.

https://www.ads-software.com/plugins/flat-rate-per-countryregion-for-woocommerce/