How to add scrolling add. fancybox product images in VirtueMart 2?

Question

VirtueMart

On the product page there are additional pictures that can be scrolled in a modal window (fancybox). It was necessary to make it the same on the product category page. It turned out to display additional pictures, on click they open in a pop-up window, but you can’t scroll them, the arrows don’t appear.
Here is the code for displaying images in the category:

<div class="additional-images">
                        
                         <?php

                            if (!empty($product->images) and count ($product->images)>1) {
                            foreach ($product->images as $image)
                             {
                                 echo '<div class="floatleft">' . $image->displayMediaThumb('class="product-image"', true, 'class="modal"', true, true) . '</div>';
                                 
                             }
                             }
                         ?>
                        </div>

What needs to be added to fix the problem?