If you have invoked a database, you have the necessary privileges
    to use the EDIT statement.

    If you have the VAX Text Processing Utility (VAXTPU) installed on
    your system, you can invoke VAXTPU with the EDIT statement in an
    RDO session. To use VAXTPU in an RDO session, define the logical
    name RDO$EDIT in the following way:

    $ DEFINE RDO$EDIT "TPU"

    Then, when you type EDIT in an RDO session, VAXTPU is invoked. If
    RDO$EDIT is not defined, or is defined to be something other than
    VAXTPU, then the EDT editor will be invoked when you issue the
    EDIT statement. If RDO cannot find the VAXTPU shareable image,
    EDT will be invoked. To use your personal VAXTPU section file
    with RDO EDIT, you must define the logical name TPU$SECTION to be
    your personal section file.

    You can use the editor you choose with your usual initialization
    file to modify your previous RDO statements, construct your next
    statement or group of statements, or include a file with other
    statements.