Type          : 28
 Name          : Select combined areas
 Optional Data : None

   Allows  the user to select any combination of message  areas
   for  "combined" mode message reading/scanning/quickscanning.
   The  user is shown a list of available areas and may  toggle
   any  of  them "ON" or "OFF".  This combination of  areas  is
   saved  as part of the user's permanent user record,  and  is
   restored at next log on.  To read messages on the "combined"
   area, use a normal read/scan/quickscan menu function but set
   the message area number in the optional data field to  zero.
   Area  zero is hard-coded as this combined area and cannot be
   defined by the sysop. Note that it is possible to define via
   RACONFIG a  default selection of combined  message areas for
   new users.