In this remix, I tried to add a blender-style interface. Press T to open the toolbox. There are many filters and generators you can use here. Click one to use it. Press T to close the toolbox. To manually edit the scene, drag the red and green arrows to select a column, then drag the blue arrow to change the height at that point. Previously, you would push space to see the final render. Now, you go to the toolbox, scroll down, and push render. To go back to editing, push esc or tab. Have fun!
Added Render Options in the properties tab! :D And EditRender is broken... Uh... CodeCube? Help? This is now an unofficial collaboration! Yay!