Hello,
They do not offer this by default.
If you want this functionality, they seem to offer a plugin you can buy, but I have never used it.
You can however, modify your own theme to do this, you will need to know PHP, HTML, CSS.
We have a child theme and we have modified it to display custom gallery layout for us.
We use CSS to arrange the items in a grid.
<div id="content" class="two-column">
<?phpif ( have_posts() ) : ?>
<?php while (have_posts()) : the_post(); ?>
<?php usces_remove_filter(); ?>
<?php usces_the_item(); ?>
<?php if(usces_sku_num() === 1) : usces_have_skus(); ?>
<div <?php post_class() ?> id="post-<?php the_ID(); ?>">
<a href="<?php the_permalink(); ?>" style="">
<div class="shop-product-container" style=""><!--product container--->
<?php usces_the_itemImage(0, 100, 100, $post); ?><!--product image--->
<div class="shop-product-container-title"><?php the_title(); ?></div><!--product title--->
<div class="shop-product-container-price"><?php usces_the_itemPriceCr(); ?></div><!--product price--->
<div style="clear: both;"></div>
</div>
</a>
</div>
<?php endif; ?>
<?php endwhile; ?>
<?php endif; ?>
</div>
Hope this is helpful