B - Read Bulletins
   C - Chat with Sysop
   N - Nail up a message (Requires access level 2 or higher)
     Editor subcommands:
      A - Abort message and return to BBS
      C - Continue entering lines in message
      D - Delete a given line in message
      E - Edit a string in a message line
      L - List message starting at a given line
      R - Replace one entire message line
      S - Store message.
   F - Enter Files subsystem
   D - Dematerialize (goodbye)
   H - Help (displays this file)
   I - Install user terminal (define clearscreen, backspace, lower case on/off, prompt bell, linefeeds, and terminal width)
   K - Kill (Delete) message
   L - User Log (cleared periodically)
   M - Mail
   O - Other Ships in area
   P - Change password
   R - Read message(s)
     Read Subcommands:
      # - Read Individual Message
      Q - Quit Reading messages
      <RET> - Read next messages
   S - Scan messages (prompts for start number)
   U - Display User list
   W - Reprints welcome file and bulletins
   X - Expert mode on/off (menu display switch)
   Y - System Information file
   ? - Help menu (valid only in expert mode)
   # - Display caller and message system status
   * - Change Sub-Boards
 
  Typing Space or Control-C aborts any function or file display in progress, except for XMODEM transfers, which are aborted by Control-X.
  System output is paused by "S" or control-S and is released by any character other than a null.
 
If the system waits 3 minutes for an input without receiving any characters, it will automatically disconnect.
 
Logon: System first checks for carriage return at 1200 baud: if any other character or garbage is received, it switches to 300 baud. Wait 1 second or so after connection is made,  then press carriage return until system logs on.
 
Access levels:
  0: Bozo: Disallowed user: no system access.
  1: Voyager: cannot send messages or upload files.
  2: Deckhand: Can send and delete messages, upload files.
  3: Swabbie: Access to More subboards
  4: Elite: Unlimited time on system
  5: Captain: Read/Write/Delete access to all message, data and system files.