How can I redefine the origin of the drawing coordinates?

From OpenOffice.org Wiki

How can I redefine the origin of the drawing coordinates?

Do it in this way:

1. Click the intersection corner between the vertical and horizontal ruler and hold the mouse button down.
2. When dragging the mouse you can see a hatched cross.
3. Reach the point you want to use as your new origin of the drawing coordinates, then release the mouse button.