Add PIP support to Shipping Multiple Addresses

pipsupport

add_action( 'wc_pip_after_body', 'add_shipping_addresses_to_pip', 10, 4 );
function add_shipping_addresses_to_pip( $type, $action, $document, $order ) {
    global $wcms;

    if ( 'invoice' == $type ) {
        $wcms->order->display_order_shipping_addresses($order);
    }
}