SYNTAX            : CTRL_N

FUNCTION          : The text area is repositioned to display the next page
                    of the buffer. The (new) current line (the one with
                    the cursor on it) will be displayed in the middle (or
                    immediately below if the number of lines in the text
                    area is even). The cursor will always be moved to the
                    beginning of the (new) current line.

NOTE              : When nearing the end of the buffer, it is possible
                    that no full page-down action is possible (remember
                    that the (new) current line is defined to be displayed
                    in the middle of the text area). In that case, only a
                    partial scroll is performed, but no error or information
                    message is generated. This function will only result
                    in an error if it is called when the cursor is already
                    positioned at the end of the buffer.

MATRIX