Use:
"cash_hand_player_statistics.flg_showdown" for went to showdown.
"cash_hand_player_combinations.flg_f_flush" for having a flush on the flop.
"cash_hand_player_statistics.flg_f_saw" for saw the flop.
Custom Stats GuideYou may also find the
Tutorial: Custom Reports and Statistics useful - this was written for PT3 but the principals are the same.
If you click the blue "insert" link in the column editor and select "cash_hand_player_combinations" you will be able to see the fields to use for other types of made hand.
If you play tournaments instead of cash replace "cash_" with "tourney_" at the start of each name.