When the UCI file is saved under a new name, WinHSPF scans the project WDM file to identify any WDM data sets associated with the previous UCI file name. For each data set identified, a new WDM data set is built to contain the output from the new UCI file, and the External Targets block is modified to use these new data set numbers. The Base DSN field in conjunction with the Relative/Absolute radio buttons is used to specify the new data set numbers for the new project. A Base DSN of 1000 specified ‘Absolute’ means that the new data sets will be numbered using the first available data set numbers after 1000. A Base DSN of 1000 specified ‘Relative’ means that the new data sets will be numbered as the next available data set number after the current data set number plus 1000 (for example data set 101 will be numbered 1101).
Specify the name for the new UCI file, and click the Save button. WinHSPF will modify the project WDM file and the External Targets block of the new UCI file as described above. Once WinHSPF completes these modifications, the new UCI file is written to disk.