In this step it is possible to select a map and a background image. Variables must be specified to build the graphics correctly.
In the first textfield a map can be specified, (Binding variables are the Node Variables).
The second textfield is for specification of an image.
The areas sources and targets are for specification of necessary source and target variables.
A weight variable can be set using the area Weights. If no variable is selected here, no weights will be applied.
The other buttons are: