SET(MODIFIABLE)

     Determines whether a buffer can be modified by the user.

  Syntax

     SET (MODIFIABLE, buffer, {ON | OFF})

  Parameters

     buffer               The name of the buffer that you want to make
                          modifiable or unmodifiable.

     ON                   Makes a buffer capable of being modified.  This is
                          the default setting.

     OFF                  Prevents a user from making any changes to a
                          buffer except creating or deleting markers or
                          ranges, or deleting the entire buffer.