I don't know if it is the one (counter)you're looking for, but on my ot-c, the parts counter is on the second page of the main paramaters list, lower right corner. Strangely, on my machine, it counts every M0, optional stop, as one count.
I will have to investigate this G65/M95 you guys speak of. I have always written on the Haas I ran, the whole program as a sub, and just ran a code that started the program with M98P100 L20 (20 pcs)
I usually throw in an M1 at the end before it recycles to the top so I can stop and check a part if need be.