TM 1-1510-225-10 3B-65 When a waypoint is inserted before ^HEND, when ^HEND    is    on    the    last    line,    the    Flight    Plan    page automatically  scrolls  as  necessary  to  keep  the ^HEND indicator  in  view  on  the  bottom  line.    This  permits  the pilot to enter a long sequence of points without having to    manually    scroll    the    page.        The    FPLN    FULL message  will  appear  in  the  scratchpad  if  there  is  an attempt to load a 61^st waypoint. (c)  Inserting   and   Deleting   Intermediate Waypoints.      In   most   cases   the   waypoints   may   be inserted  or  deleted  between  any  two  waypoints  in  the flight  plan.    When  waypoints  are  inserted,  succeeding waypoints   are   automatically   moved   down   the   list.   Upon    insertion,    the    new    waypoints    assume    the number  of  the  immediately  preceding  waypoint  and adds    an    alphabetical    suffix    (e.g.    03A,    03B,    etc).   Exception to this would be when a waypoint is inserted between  waypoints  that  already  have  an  alphabetical suffix,  the  next  character  in  sequence  would  be  used as  the  next  suffix.    If  lettering  goes  as  high  as  Z  and there   is   an   attempt   to   insert   another   waypoint,   the RENUMBER  FPLN  scratchpad  message  will  occur.   When    the    waypoints    are    deleted,    the    flight    plan automatically eliminates all holes by moving waypoints up  the  list  as  required.    The  waypoint  numbers  being out    of    the    normal    sequence    can    identify    deleted waypoints. There     are     three     exceptions     to     the     above waypoint statements as follows.  Refer to Figure 3B-28 and Table 3B -19. 1.   Inserting  a  new   FROM waypoint:   Instead of waypoints moving down the    list    when    inserting    a    new FROM waypoint, the current FROM waypoint moves up the list.   An   alphabetical   suffix   is   added based on the preceding waypoint, which     was     the     former FROM waypoint. 2.   No    waypoints    can    be    inserted between any two-history waypoints. 3.   The last history waypoint (waypoint 00) cannot be deleted. Sixty    waypoints    is    the    maximum    number    of waypoints  allowed  in  the  active  flight  plan.    The  FPLN FULL   message   will  appear  in  the  scratchpad  if  an insertion of a 61^st waypoint is attempted. (d)  Renumbering  Flight  Plan  Waypoints.   After inserting or deleting waypoints, there becomes a requirement   to   renumber   the   flight   plan   to   remove waypoints    with    alphabetical    suffixes,    perform    the following procedures.  First access the Flight Plan Edit 2  page  and  then  select  the   RENUMBER  line  select key   (requires   confirmation).      This   causes   all   future flight  plan  waypoints  to  be  renumbered  in  sequence without    alphabetic    suffixes,    starting    at    the    active waypoint number.  The active waypoint and the history waypoints are not renumbered. Figure 3B-28.  Inserting and Deleting Intermediate Flight Plan Waypoints Table 3B-19.  Inserting and Deleting Intermediate Flight Plan Waypoints NO.   DESCRIPTION/FUNCTION 1 Enter     next     desired     waypoint     into     the scratchpad. 2 Insert  waypoint,  moving  BRL  down  in  the flight. 3 Enter a – in scratchpad to delete waypoint. 4 Delete    waypoint,    closing    up    the    hole created in the flight plan.