Allows you to set a default entity, to which all subsequent NCL
    commands will refer.

    ncl> set ncl default entity [entity-name]

    Examples:

    ncl> set ncl default entity session control

    ncl> set ncl default entity -
        node remnod"remoteuser remotepassword"

    This command is usually used in conjunction with the SET NCL
    DEFAULT_ENTITY command to manage a remote Phase V node.  Refer to
    HELP NCL DEFAULT_CONTEXT for more detailed information.