SET SCROLL MARGINS

 Sets the top and bottom distances at which scrolling begins automatically
 as you move the text cursor up and down.  You specify these distances as
 numbers of lines or as percentages of the window size.

 Examples:

    Command                        Purpose or effects
    ---------------------------------------------------------------------
    SET SCROLL MARGINS 2 3         Sets scroll margins at two lines from
                                   the top and three lines from the bottom
                                   of the window.  EVE converts the numbers
                                   to percentages.

    SET SCROLL MARGINS 7 7         This is the EVE equivalent of the EDT
                                   command SET CURSOR 7:14.  See help on
                                   EDT CONVERSION.

    SET SCROLL MARGINS 10% 15%     Sets scroll margins at 10% from the top
                                   and 15% from the bottom of the window.

 o  The default scroll margins are 0 0; that is, scrolling does not start
    until you move to a line off the current window.

 o  Specifying percentages instead of numbers of lines is useful in case
    you run EVE on a workstation with a variable size screen, as well as on
    fixed-cell terminals, such as a VT100 or VT240.  You may want to put
    the command in an initialization file.

 o  Scroll margins apply to all windows.  Therefore, if you use multiple
    windows, you may want to reset the scroll margins accordingly.