Hi Nikolaos,
As promised we’ve just released new plugin version 1.4.0. After update you can use new [alg_product_gallery_image_url] shortcode in your feed, e.g.:
<image_1>[alg_product_gallery_image_url image_nr="1"]</image_1> <image_2>[alg_product_gallery_image_url image_nr="2"]</image_2> <image_3>[alg_product_gallery_image_url image_nr="3"]</image_3>
and so on…
In case if there is no image available, empty string will be outputted.
Hope that helps. Please let me know if something is not working correctly.
P.S. If you like the plugin, please leave us a rating.