Add Content in custom status email template

order_email_template.php

/**
* How to edit or override the email templates for custom order status?
* @link https://brightplugins.com/docs/how-to-edit-or-override-the-email-templates-for-custom-order-status/
*/
add_action( 'woocommerce_email_before_order_table', 'brightplugins_add_content_specific_email', 20, 4 );

function brightplugins_add_content_specific_email( $order, $sent_to_admin, $plain_text, $email ) {

  if ( $email->id == 'bvos_custom_transit' ) {
		echo '<p>Content for Transit Status</p>';
	}
	if ( $email->id == 'bvos_custom_waiting-for-conf' ) {
		echo '<p>Content for Waiting Status</p>';
	}

}