Как регулировать порядок загрузки через msGallery?

<div id="msGallery" class="msoptionsprice-gallery">

    <div class="fotorama"
         data-nav="thumbs"
         data-fit_="cover"
         data-allowfullscreen="false"
         data-swipe="true"
         data-enableifsingleframe="false">

        {var $preload = []}

        {if $files?}
            {foreach $files as $file}
                {set $preload[] = '<img src='~$file['medium']~'>'}
                <a href="{$file['medium']}" target="_blank" alt="{$file['name']}" title="{$file['description']}">
                    <img src="{$file['small']}" class="img-responsive" alt="{$file['name']}" title="{$file['description']}">
                </a>
            {/foreach}
        {else}
            <a href="{('assets_url' | option) ~ 'img/noimage.png'}" target="_blank" alt="noimage" title="noimage">
                <img src="{('assets_url' | option) ~ 'img/noimage.png'}" alt="noimage" title="noimage">
            </a>
        {/if}
    </div>

</div>

<div style="position:fixed;left:9999px;opacity:0;">
    {$preload|join}
</div>