special pictures in responsive lightbox

I use Responsive Lightbox 1.7.2 and want to use only Special Pictures.
For example in a productside like https://www.agoshop.at/shop/ago-quart-der-algen-und-moosentferner/ago-quart-50/ I have add Special Picture for the product. These Picture should be used in Responsive Lightbox 1.7.2. But I use also cross selling products at the end and these Pictures will also display in the Responsive Lightbox 1.7.2. So how can I use only the productpictures for the lightbox.
kindly regards.

kindly regards

Hey there,

I hope you are well today and thank you for your question.

Unfortunately, this is considered an advanced customization request and is beyond the scope of support provided.
This will require modification of these files, as it changes the design of the theme.

If you are not a developer then you can consider customizations offered by Envato,

Best regards,