YITH WooCommerce Email Templates is an extension that allows you to perform advanced customization on standard WooCommerce Emails that are sent to your customers. You can use a different template for each email, choosing from a pool of 4 offered by the plugin.
Thanks to the integration with YITH Custom Order Status, you can also configure the email that it is sent when an order gets assigned a custom status.
For further details about YITH Email Templates, you can refer to the plugin’s official documentation here.