Create and use the following two custom columns to build Squeeze Flop:
cnt_f_squeeze: sum(if[holdem_hand_player_detail.amt_f_bet_facing = 0 and holdem_hand_player_detail.amt_f_raise_facing > 0 and holdem_hand_player_statistics.flg_f_3bet, 1, 0])
cnt_f_squeeze_opp: sum(if[holdem_hand_player_detail.amt_f_bet_facing = 0 and holdem_hand_player_detail.amt_f_raise_facing > 0, 1, 0])
Put the former over the latter and multiply by 100 to get your stat. For more on building custom statistics and reports please see the
Tutorial: Using Custom Statistics and Reports.