GUI Type string
  
  
Description
				Specifies a number of sources of data and type of
    action. 
    It can be decomposed into a number of sources and the ability
    to edit those data. 
				Values
				
					
						
							| Value | 
							Description | 
						 
						
							| none | 
							Not specified, let the presence of sources and
          results side decide  | 
						 
						
							| show | 
							One source, to be viewed  | 
						 
						
							| edit | 
							One source, to be modified | 
						 
						
							| diff2 | 
							Two sources, to be viewed | 
						 
						
							| merge2 | 
							Two sources, to be modified | 
						 
						
							| diff3 | 
							Three sources, to be viewed | 
						 
						
							| merge3 | 
							Three sources, to be modified | 
						 
					
				 
			
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