The sample jobs tailor the LIBPACKs and then use them to replace the LIBPACKs in the Language Environment target library SCEERUN. You could place them in another data set instead, provided that the LOADs issued during runtime can find them. The customized LIBPACKs must be found ahead of (in search-order sequence or in library concatenation), or instead of, those that were installed with the product. If you want to link edit a LIBPACK into an alternative library, modify and run only the LINK-EDIT step of the sample jobs.