MOVE LEFT

 Moves the cursor left one character at a time.

 o  If the cursor is FREE, you can move it anywhere in the buffer, whether
    characters are already there or not.  If the cursor is BOUND, then from
    the start of a line, it moves to the end of the previous line, if there
    is one.

 o  If you are at the left edge of a window, MOVE LEFT does NOT shift the
    window to the left.  (See help on SHIFT LEFT.)

 Keys:  EVE defines the LEFT arrow key as MOVE LEFT.
        The VT100 keypad also defines KP1.

 Related topics:

    MOVE BY WORD   SET CURSOR BOUND   SET CURSOR FREE   START OF LINE