Library /sys$common/syshlp/macro$dwci.hlb config_name, add  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  Click on the Add button to establish the configuration
  of option settings identified in the Applied
  Configuration dialog box as a permanent configuration
  for future use.

  The name of the configuration is added to the
  Configurations list box after you click on the Add
  button.  If the name in the Applied Configuration
  dialog box is the same as a name in the Configurations
  list box, the configuration of options associated with
  the name in the Configurations list box is replaced by
  the new configuration.