While the player names at partypoker regular cash game tables are displayed on the table these names have been
anonymised by partypoker in the hand history files. As a result PokerTracker 4 now defaults to show session stats for the anonymous players but it will still track your own results fully (your own name is not anonymous in the histories). You can reset the session stats for the whole table via the PT-icon however it's not currently possible to reset an individual players session stats so if you want to be automatically notified if this functionality is added in a future update then you can let us know in a
Support Ticket.