Use the Diagrams tab of the User Preferences window to specify the color-coding used in relationship flow diagrams, the thresholds
               for clustering and filtering, and performance limits for large diagrams. 
               	 
            
 
            	 
            
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                  		  Choose 
                     			 Tools > User Preferences. The User Preferences window opens. Click the Diagrams tab. 
                     		   
                  		
               
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                  		  Select 
                     			 Prompt When Diagram Mode Changes to be prompted when you switch between a diagram generated for a project and a diagram generated for copied-and-pasted objects.
                     
                     		   
                  		
               
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                  		  In the Color Scheme pane, click the object type whose color you want to edit. The current background color of the type (if
                     any) is displayed in the Color drop-down. 
                     		   
                  		
               
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                  		  Click the adjacent 
                     			  button and choose 
                     			 ForeColor from the pop-up menu if you want to specify the color of the caption for the object type, or 
                     			 BackColor if you want to specify the color of the background for the object type. button and choose 
                     			 ForeColor from the pop-up menu if you want to specify the color of the caption for the object type, or 
                     			 BackColor if you want to specify the color of the background for the object type.
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                  		  In the 
                     			 Shape drop-down, select the shape of the object type in the diagram. Select 
                     			 Lock Shape Aspect to specify that the shape not be adjusted to fit the caption. 
                     		   
                  		
               
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                  		  Click 
                     			 Performance button. The Performance Option Limits dialog opens. 
                     		   
                  		
               
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                  		  Deselect 
                     			 Relayout Subgraphs if you do not want child groups to be redrawn when you choose a new layout style. 
                     		   
                  		    
                  			 
                  Note: Selecting this option may result in poor performance for very large diagrams. 
                     			 
                   
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                  		  In the 
                     			 Maximum relationships to return from repository field, enter the maximum number of relationships to display in the diagram. Relationships are truncated when the maximum
                     is exceeded. 
                     		   
                  		    
                  			 
                  Note: Setting this option too high may result in poor performance for very large diagrams. 
                     			 
                   
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                  		  In the 
                     			 Force Symmetric Layout (all relationships) field, enter the maximum number of relationships to display in the diagram before forcing symmetric layout style. 
                     		   
                  		    
                  			 
                  Note: Symmetric layout style typically offers the best performance for very large diagrams. Setting this option too high may result
                     in poor performance for very large diagrams. 
                     			 
                   
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                  		  In the 
                     			 Offer Auto Clustering Layout (all relationships) field, enter the maximum number of relationships to display in the diagram before offering to perform clustering. 
                     		   
                  		
               
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                  		  Select 
                     			 Filter Options Enabled to enable filtering. 
                     		   
                  		
               
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                  		  In the 
                     			 Hide Drivers (all relationships) field, enter the maximum number of relationships to display in the diagram before filtering drivers. (A 
                     			 driver is an object with many outputs, a startup program, for example.) Specify the filtering thresholds for inputs and outputs:
                     
                     		   
                  		  
                   
                     			 
                     - In the 
                        				Incoming Relationships field, enter the filtering threshold for incoming relationships. 
                        			 
                     
- In the 
                        				Outgoing Relationships field, enter the filtering threshold for outgoing relationships. 
                        			 
                     
 
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                  		  In the 
                     			 Hide Utilities (all relationships) field, enter the maximum number of relationships to display in the diagram before filtering utilities. (A 
                     			 utility is an object with many inputs, DATEFMT, for example.) Specify the filtering thresholds for inputs and outputs: 
                     		   
                  		  
                   
                     			 
                     - In the 
                        				Incoming Relationships field, enter the filtering threshold for incoming relationships. 
                        			 
                     
- In the 
                        				Outgoing Relationships field, enter the filtering threshold for outgoing relationships. 
                        			 
                     
 
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                  		  In the 
                     			 Hide High Output Nodes (all relationships) field, enter the maximum number of relationships to display in the diagram before filtering objects with many outputs that
                     do not meet the outgoing relationships threshold for drivers. Specify the filtering thresholds for outputs in the 
                     			 Outgoing Relationships field. 
                     		   
                  		
               
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                  		  In the 
                     			 Hide High Input Nodes (all relationships) field, enter the maximum number of relationships to display in the diagram before filtering objects that do not meet the
                     incoming relationship threshold for utilities. Specify the filtering threshold for inputs in the 
                     			 Incoming Relationships field.