If you pursue Data Changing regularly you have to know how to set areas for itrs and bdy with x: (X-coordinate); y: (Y-coordinate); w: (Width) and h: (Height). Following pictures explain how it works - just click on the crosses and areas with the mouse and read the coordinates (Can take a few seconds...).

Coordinates:
The crosses are the starting-points for the corresponding areas!

Areas:
The coordinates always start at the left upper corner of a single picture (light, red cross). At the point set through the coordinates, the area is hung up - that's all! 

Hover over the rectangles to get their w- and h-values.