U - Up
                Decrements the line pointer by n lines, and then lists the new current line.
                Syntax
                U{n}
                Syntax Elements
                n is the number of lines to 
decrement.
                If n is zero or omitted, the current line is 
listed.
                Message
                The message Top  is displayed if the line pointer is at the beginning 
of the item.
                Example
                
                    
                        
                        
                    
                    
                        | :EDIT FILE1 ITEM1Top
 .L99
 001 AAAAA
 002 BBBBB
 003 CCCCC
 004 DDDDD
 005 EEEEE
 006 FFFFF
 EOI 006
 .RETURN
 Top
 .RETURN
 001 AAAAA
 .RETURN
 002 BBBBB
 .N2
 004 DDDDD
 .U2
 002 BBBBB
 .
 | 
                                
 List command. List the first 99 lines in the item.
 Item has only 6 lines, so entire item is listed.
 
 
 
 
 
 
 Null command.
 
 Because current line pointer is at EOI, the first line is listed.
 Null command.
 Lists next line.
 N command.
 Moves down 2 lines and lists line.
 U command.
 Moves up 2 lines and lists line.
 |