The COPY (abbreviated CO) command copies text from one location to
 another within a buffer or between buffers.  When text is copied, the
 source text remains intact.

 Format: COPY [range-1] TO [range-2] [/QUERY] [/DUPLICATE:n]

 The lines specified by range-1 are copied above the first line specified
 by range-2.  Either range defaults to the current line. Either range may
 include a buffer specification.

 If the destination is not the current buffer, put the name of the
 receiving buffer immediately after TO (=buffer). Give the full name of
 the buffer.  To copy text from an external file, see INCLUDE.