I was able to get 4. Took awhile to get in and then I was really frustrated trying to buy tickets. It kept telling me no tickets were available in sets of 4 for any sections. I'd look at the seat map and it would have plenty of seats. Turns out it wouldn't let you buy any sets of tickets that would leave single seats. So there was a bunch of sets of 3/5 available, but the sets of 5 I couldn't get 4 of (or two sets of two because it left a single seat). It was pretty frustrating. I don't know if this was a mistake or not. But it's what was happening. Then as I was playing around with it, obviously more seats kept being purchased. I finally did find a set of 4 (on the seat map, not when just looking for best available) in section 410. It was really annoying because there really were a lot of seats open in much better locations, but it wouldn't let me purchase any of them. I don't know why the Brewers care. They will sell all the single seats for Opening Day without any problem. When I first did get in there, there were a few groups of seats in the lower box, but I didn't want to pay that much for my drunken friends. After about 5 minutes though, everything left was Terrace Reserved.