WooCommerce Email Template Customizer – feature question

Hello, we are currently using the free version of the WooCommerce Email Template Customizer plugin. We have a problem within the order summary table. We would need to include there one more column with the price for the 1 piece of the product. So the table should have 4 columns: name of the product, price per one product, amount of purchased, price for all products. I am not able to see this option anywhere. I wanted to ask if I am able to make this change within premium version of the plugin, or if it is possible to be achieved by custom code with some hook? Thank you in advance.