You can set the following preferences in the  category of the  window.
         
          
              
            
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                      Controls how much of a sound’s waveform (amplitude representation) is displayed in the . Default is .
                       - Top 
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                                 Displays only the top half of the sound.
                                  
 
- Bottom 
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                                 Displays only the bottom half of the sound.
                                  
 
- All
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                                 Displays the full waveform.
                                  
 
 
 
 
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                      Specifies that a sound continuously repeats at the current time as you hold down the mouse button until you drag the Current
                        Time Indicator to the next time in the . Useful for locating a particular sound in a soundtrack. Default is off.
                      
 
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                      Specifies how much sound is repeated when you hold down the mouse button with  turned on. Select the number of frames of sound you want to repeat. (Default is 1.) Only available if  is on.