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.

Additional information available:

/DUPLICATE/QUERY

Format: /DUPLICATE:n

When you use the /DUPLICATE (abbreviated /DUP) qualifier, the lines
specified by range-1 are duplicated n times.

Format: /QUERY

When you use the /QUERY (abbreviated /Q) qualifier, EDT prompts you with
a question mark (?) to verify each line to be copied.

Responses are:

    Y   Yes, copy this line
    N   No, do not copy this line
    Q   Quit, do not copy any of the remaining lines in the range
    A   All, copy all the rest of the lines