Add Bulk actions to Woocommerce products list

woocommerce_orders_bulk_actions.php

<?php

/**
 * PHP 5.3 and WP 4.7 is required
 */

//apply_filters( "bulk_actions-{$this->screen->id}", $this->_actions );

// Add our actions to list
add_filter( "bulk_actions-edit-shop_order", function($actions) {
    $statuses = wc_get_order_statuses();
    foreach ($statuses as $key => $name) {
        $actions[ 'set-' . $key] = "Set status \"" . $name . "\"";
    }

    return $actions;
}, 9 );

// Process Action

add_action( "admin_init", function() {
    // Make sure that we on "Woocomerce orders list" page
    if ( !isset($_GET['post_type']) || $_GET['post_type'] != 'shop_order' ) {
        return;
    }

    if ( isset($_GET['action']) && 'set-' === substr( $_GET['action'], 0, 4 ) ) {
        // Check Nonce
        if ( !check_admin_referer("bulk-posts") ) {
            return;
        }
        // Remove 'set-' from action
        $new_status =  substr( $_GET['action'], 4 );

        $posts = $_GET['post'];

        foreach ($posts as $postID) {
            if ( !is_numeric($postID) ) {
                continue;
            }
            $order = new WC_Order( (int)$postID );
            $order->update_status( $new_status, 'Bulk actions' );
        }

    }
}, 0 );