Scrolling multiple items at once Created Aug 27, 2010

Here's my concept:

<div class="scrollable">

   <ul class="items">

     <li>This a single item</li>
     <li>This a single item</li>
     <li>This a single item</li>
     ... 
     <li>This a single item</li>

   </ul>

</div>

How do I get to scroll multiple items at once? Obviously I can't group the LIs with DIVs. I'm certain that it was possible before, because I remember that scrollable on this page wasn't as useless as it is now - before, when you clicked on 'Add item', it would add a single thumbnail, and not an item with two thumbnails.