Вот весь код виджета. Это содержимое файла block_image_middle.php
<div class="product_images">
<div id="showcase-37-53d1f799b55bc" class="wk-gallery-showcase" data-widgetkit="showcase" data-options="{"style":"showcase_box","autoplay":1,"interval":5000,"width":350,"height":220,"duration":1500,"index":0,"order":"default","buttons":0,"slices":20,"animated":"rotate","caption_animation_duration":500,"effect":"zoom","slideset_buttons":1,"items_per_set":4,"slideset_effect_duration":400}">
<div id="showcase-37-53d1f799b55bc" class="wk-slideshow">
<div class="slides-container">
<div class="zoom-img"><i class="uk-icon-search-plus"></i></div>
<?php print $this->_tmp_product_html_before_image;?>
<?php if ($product->label_id){?>
<?php if ($product->_label_image){?>
<div class="uk-panel-badge" style="z-index:10; top:-1px; right: 10px;">
<img src="<?php print $product->_label_image?>" alt="<?php print htmlspecialchars($product->_label_name)?>" /></div>
<?php }else{?>
<div class="uk-badge uk-panel-badge uk-badge-danger" style="z-index:10; right: 10px;"><?php print $product->_label_name;?></div>
<?php }?>
<?php }?>
<?php print $this->_tmp_product_html_after_image;?>
<ul class="slides" style="width: 100%; overflow: hidden; position: relative; height: 229px;">
<?php foreach($this->images as $k=>$image){?>
<li style="top: 0; left: 0; position: absolute; <?php if ($k != 0){ echo "display:none; z-index: 1; opacity: 0;"; } else { echo "display: list-item; z-index: 2; opacity: 1; ";}?> height: 229px; width: 229px;">
<article class="wk-content clearfix">
<a data-lightbox="transitionIn:elastic;transitionOut:elastic;group:mygroup1;titlePosition:over;padding:0" class="uk-overlay-toggle" href="<?php echo $this->image_product_path?>/<?php echo $image->image_full;?>" title="<?php echo htmlspecialchars($image->_title)?>" style="border-bottom:none;">
<img itemprop="image" id="main_image_<?php echo $image->image_id?>" src="<?php echo $this->image_product_path?>/<?php echo $image->image_full;?>" alt="<?php echo htmlspecialchars($image->_title)?>" title="<?php echo htmlspecialchars($image->_title)?>"/>
<div class="uk-overlay-area"></div>
</a>
</article>
</li>
<?php }?>
</ul>
</div>
</div>
<?php if (count($this->images) > 1) { ?>
<div id="slideset-37-53d1f799b55bc" class="wk-slideset " style="visibility: visible;">
<div>
<div class="sets">
<?php $next_prev = true;?>
<?php foreach($this->images as $k => $image){?>
<?php if ($k%3 == 0){?>
<?php if ($k){$next_prev = true;}?>
<ul class="set" style="display: block; margin: 0 auto;">
<?php }?>
<li style="left: <?php echo $k * 80;?>px;" class="<?php echo $k ? "": "active";?>">
<div><img src="<?php print $this->image_product_path?>/<?php print $image->image_thumb?>" width="80" height="60" alt="<?php print htmlspecialchars($image->_title)?>"></div>
</li>
<?php if ($k%3 == 2){?>
</ul>
<?php }?>
<?php }?>
</div>
<?php if($next_prev){ ?>
<div class="next"></div>
<div class="prev"></div>
<?php }?>
</div>
</div>
<?php }?>
</div>
</div>
Но я рекомендую не менять этот файл, а создать другой, и поменять путь в product_default.php
.css на сайте скорее всего там тоже нужно подправить, для линзы и бейджа (z-index, и др.)