My bad, its a 3 coin one line Double Diamond. According to the chip summary, one must first set it 20/1 to start, then the next few set ups are for the time, a break etc. once in the Tournament mode. However, I cant set the 20/0 to 20/1 to start any further set-ups. YES I did remove all credits, but nothing happened. For some reason, the spin reel goes dark which is the button to move from the 20 to the O then make the O a 1. But the light goes dark when I turn the jackpot key and get it line 20. It is on on many of the other options like the bell to ring on hand payouts only vrs every hit, but when line 20 comes up you can only backward down to 19, 18 etc or ahead. No choice to move over the O digit to make it 1.