Expanding work area

Hello. I have done the tutorial http://www.kirupa.com/developer/flash5/slidingmenu.htm.
It works great. In my flashfile I have a 7000 pixel wide slider. My problem is that in Flash I cant see whats beyond 3000 pixels. How can I expand the work area? Is this possible? I can slide the slider back and forward, but I cant work or type in any information beyond 3000 pixels.

Please help anyone.