Just to help you with your design, a little bit. What you probably want to do, is make a frame on the left, with a X-Y scrollable HList, which when selected, displays the file on the right-side frame. Here is a screenshot . It may be a little more than you need, but the script contains alot of little bits of code which you may find useful, like colors for the HList, X-Y scrolling of the HList, and paging of the HList. Here is the script and a fully working graphical demo .