You enter the nokeypad mode of change mode if your terminal is a
 VT100-type or VT52 and the SET NOKEYPAD command has been used to turn
 off the keypad option.  The screen is used as a window into the text
 buffer. You type nokeypad mode commands at the keyboard; they echo on
 the bottom line of the screen.  EDT executes the commands and updates
 the text on the screen whenever you press return.