Bulk Edit Image URL

Firstly thanks for a really great product. For batch updating attributes its is superb.

I can not though bulk edit the image url.

It will not allow me to edit the path.

Fine in product name, but not in image url

Thanks

Mark

https://www.ads-software.com/plugins/excel-like-price-change-for-woocommerce-and-wp-e-commerce-light/