Instructions: first select the next line and press the "do it" button.
This will change the language of this workspace to Worlds/JS. 

   include("Worlds2_Compiled")

Now you should be able to run the example below. (Just select the code
and press "do it".)

  myPoint = {x: 1, y: 2}
  w = thisWorld.sprout()
  in w {
    myPoint.x = myPoint.x + 5
    alert("x=" + myPoint.x + ", y=" + myPoint.y)    
  }
  alert("x=" + myPoint.x + ", y=" + myPoint.y)
  w.commit()
  alert("x=" + myPoint.x + ", y=" + myPoint.y)