Just click the green flag. Each time you click the flag, a new chunk will generate. THINGS THAT CAN GENERATE (rarest to least rarest): Emerald, Diamond, Gold, Iron, Coal, Dirt, Tree,Grass, Air
What I (@ScratchB518) changed about it: Press space to change the landscape. :) I also messed around a little bit. :) Wow, you sure like scrolling, don't you?