The PII Data Obfuscation menu has all the links to use the data obfuscation fogging tool:
WRKOBFWRD: Work with list of all obfuscation keywords
GENOBFDB: Load and Scan obfuscation database
PRTOBJ: Print list of all candidate fields in database
STROBF: Obfuscate the data
PRGDTA: Purge IBM i File Data