Simply use the HTML-markup and you should be good to go...

slide-elem-with-gallery-example

<div class="da-slide">
  <h2>Heading</h2>
  <p>Lorem ipsum foobar...</p>
  <!-- Image-Wrapper:
    - Create a container with class 'gallery'
    - Put your gallery-imgs inside ;) ... -->
  <div class="gallery">
    <!-- a.da-link triggers lightbox-gallery... -->
    <a href="path/to/img-1.jpg" class="da-link lightbox"></a>
    <a href="path/to/img-2.jpg"></a>
            ...
    <a href="path/to/img-N.jpg"></a>
  </div>
  <div class="da-img">
    <img src="path/to/thumb.png" alt="" />
  </div>
</div>
<!-- ... more slides... -->

<script type="text/javascript">
  $(function() {
    // some code...
    
    /*
     * Initialize galleries.
     *
     * How it works:
     * We select all elements with class 'gallery'.
     * Iterate over the set of elements and apply the lightbox-plugin on each element.
     */
    $('.gallery').each(function(i) {    // select all .gallery-elements
      $('a', this).lightBox();        // for each element, initialize the lightBox-plugin
    });
  });
</script>