The REPLACE (abbreviated R) command deletes the specified range of lines
 and then places EDT in INSERT mode.

 Format: REPLACE [range] ;text to insert
     Or: REPLACE [range]
         text to insert
         ^Z

 When you do not specify a range, replace deletes the current line and
 inserts the new text at that location.

 If you use the first form of the REPLACE command, EDT inserts the text
 in the command line following the semicolon and the editor does not
 enter insert mode.  This is the only form of the REPLACE command that
 should be used in startup command files and macros.

 If you use the second form, EDT enters insert mode.  In insert mode you
 can enter as many lines of text as you wish, terminating each line with
 a carriage return.  You terminate insert mode by pressing CTRL/Z.

 The line following the last line inserted becomes the current line.