According to NYRA, this is the wagering menu for 6/8 at Belmont.

Race 1-12--WPS, Ex, Tri
Race 2, 4--Qui
Race 1,6,10,11--DD
Race 2-7,9,10--P3
Race 6--P6
Race 8,9--P4
Race 10,12--Super

Two Bucks: Race 9 starts a pick 4 also