Why no “Fold to Turn 3Bet%” stat

Why doesn’t DH2 have the “fold to turn 3bet%” stat?
It has the fold to flop 3Bet% and fold to river 3bet%, but the turn stat is missing.

I used the term to search for the stat “fold to turn 3bet” and stat is not there.

Can you please tell me the expressions used to create a “fold to turn 3bet%” custom stat?
Or if you let me know the expressions you used to create the fold to flop 3Bet% or fold to river 3bet% stats, then I can create the “Fold to Turn 3Bet%” myself.

Thanks!!