When you are using NCL commands to manage one particular
    entity, either set up a default for the entity, access control
    information for the entity, or both. For example:

    ncl> set ncl default entity node .mfg.cadcam session control
    ncl> show ncl default entity
    ncl default entity = node .mfg.cadcam session control

    The set ncl default access command sets up default access
    control independently of the default entity. Once established,
    the default access control is applied to any command where
    an explicit by prepositional phrase is omitted and no user
    information is given with the node name.

    ncl> ! on node .admin.finance
    ncl> set ncl default access by user=j_smith, password=DoNotUse
    ncl> show ncl default access

    ncl Default access = user name=j_smith
           account=
           proxy=false

    ncl> show node .admin.artists session control application -
    _ncl> graphics_exchange all counters

    The set ncl default access overrides an embedded access control
    value in the entity.