Creating Session Documents in Notes Log

Starting with R6 notes server, Session Documents are no longer created in the LOG.NSF db so the Usage / By Date and By User are empty. What INI setting needs to be set in order for these docs to be created.

some settings already in INI file currently:

LOG_SESSIONS=1

ServerTasks=Tivoliv60,Replica,Router,Update,AMgr,Adminp

ServerTasksAt2=UpdAll

ServerTasksAt5=Statlog

ServerTasksAt3=Catalog

ServerTasksAt1=Statlog

Sorry to bother with such a question but could not find in Help.