According to this: http://hopper.minecraft.net/help/out-of-memory/

I Quote" "To allocate more RAM, open the game launcher, and press the "Edit Profile" button at the bottom left. There should be a checkbox called "JVM arguments", check that and input: -Xmx2G to give 2GB to the game, or -Xmx2560M to give 2560MB. Once you have checked and inputted the data, hit "Save Profile"."

This Imply's that the "Edit Profile" Button is here, but what happened, why was it removed?

B.T.W My game keeps crashing, here's the code, please help: 805306369