The following optional entries can be included and can improve the performance of screen displays in some situations: 
	 
 
	  
	 
 
		   
		   
		   
			  
				| Entry
				 | 
 
				Mnemonic
				 | 
 
			 
 
		  
 
		   
			  
				| Parameterized cursor down 
				 | 
 
				cud 
				 | 
 
			 
 
			  
				| Parameterized cursor left 
				 | 
 
				cub 
				 | 
 
			 
 
			  
				| Parameterized cursor right 
				 | 
 
				cuf 
				 | 
 
			 
 
			  
				| Parameterized cursor up 
				 | 
 
				cuu 
				 | 
 
			 
 
		  
 
		
 
 
	  
 
	  If the following entries are present, scroll regions can be used to scroll areas of the screen, which greatly speeds up such operations: 
	 
 
	  
	 
 
		   
		   
		   
			  
				| Entry
				 | 
 
				Mnemonic
				 | 
 
			 
 
		  
 
		   
			  
				| Change scroll region 
				 | 
 
				csr 
				 | 
 
			 
 
			  
				| Insert line 
				 | 
 
				il1 
				 | 
 
			 
 
			  
				| Delete line 
				 | 
 
				dl1 
				 | 
 
			 
			 
				| Scroll forward
				 | 
				ind
				 | 
			 
			 
				| Scroll reverse
				 | 
				ri
				 | 
			 
			 
				| parameterized scroll forward
				 | 
				indn
				 | 
			 
			 
				| parameterized scroll reverse
				 | 
				rin
				 |