To specify the default depth of synonym and impact trace processing and the amount of information to display: 
               	 
            
 
            	 
            
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                  		  Click 
                     			 . This opens the 
                     			 Options - Project properties dialog box. 
                     		   
                  		    
                  			 
                  Note: You can also set the Change Analyzer from the Change Analyzer dialog box. To do so, select 
                     				. 
                     			 
                   
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                  		  Click the 
                     			 Change Analyzer tab.
                     		  
                  		
               
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                  		  In the 
                     			 Synonyms group, specify the depth of synonym and impact trace processing in the 
                     			 Default Depth field. In this pane you can also select to use file descriptors in the analysis, use cross-program analysis and/or if you
                     want to have a cross-program analysis warning before starting the analysis. When the 
                     			 Check for variables that write to synonym option is checked, the analysis traces both variables that use the synonym and variables that affect the synonym. If it is
                     unchecked, the analysis traces only the variables that use the synonym. Note that unselecting the 
                     			 Use Cross-Program Analysis, 
                     			 Use File Descriptors in Analysis and 
                     			 Check for variables that writes to synonym options increases the analysis performance. 
                     		   
                  		
               
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                  		  In the 
                     			 Affected Code Report group, specify in the 
                     			 Neighborhood Size field the number of lines of unaffected code you want the Affected Code report to display above and below the line of affected
                     code. The line of affected code is displayed in bold in the report. Select 
                     			 Show unused datanames if you want the report to include unused data fields.