PCAC> SET SOURCE [PROJA], [PROJB], DISK:[PETER.PAN]

      This command tells the Collector to locate all source files by
      searching directories [PROJA], [PROJB], and DISK:[PETER.PAN],
      in that order.

  PCAC> SET SOURCE/MODULE=NICK [TSAKERES]

      This command tells the Collector to search directory [TSAKERES]
      when accessing source files for module NICK.