Before we go through the details of the Layer Control Dialog, let's spend a second with the possibilities of moving and resizing a graph just by using the mouse.
To do so, click on the lower x axis. The graph is now highlighted by a frame decorated with squares. Dragging one of the squares by the mouse will resize the graph in the same way that you may be familiar with from some graphics program packages.
To move the graph to a new position, click on the x axis again. While holding the mouse button down, you can move the graph to a new position by dragging it with the mouse.