Large Waveforms not showing on screen

Hi, I just purchased the XDJ-RX, and I am still learning all of the different functions that are on it. One of the things I can't seem to get to work are the large waveforms on the screen. Is that something that should automatically appear when you play the track? Or do you have to do something to make them appear? And if so, what? The small waveforms appear just fine, I just can't the large ones to appear. Any help you can provide, would be appreciated. Thanks, Scott