Add multiple elements to WooCommerce Customer/Order XML Export Suite

gistfile1.php

<?php
add_filter( 'wc_customer_order_xml_export_suite_order_export_order_list_format', function ( $order_format, $order ) {

	$order_format['AddressCapabilities'] = array(

		'AddressCapability' => array(
			0 => array(
				'@attributes' => array( 'AddressType' => 'MAIN' ),
			),
			1 => array(
				'@attributes' => array( 'AddressType' => 'OFC', 'isMainAddress' => 'true' ),
			),
		)
	);

	return $order_format;
}, 10, 2 );