Use the SET LINE command to create or modify line  parameters  in  the
 volatile  database on the executor node.  Use the DEFINE LINE command to
 create or modify line parameters in the permanent  data base  on  the
 executor node.
 SET     KNOWN LINES     (parameters ...)
         LINE line-id
 All underscores found in parameters must be replaced with spaces
 when parameters are used in NCP commands.
Additional Information:
explode
extract