The "Water" frame allows for selecting the type of water. The ground water table can be specified in two ways. The first option allows for specifying the height of a flat ground water table. The second option enables to define an arbitrary shape of the ground water table with the help of coordinates.
The water parameters (water table height, coordinates of points) can be edited either in the frame by inserting values into the input fields or on the desktop using the active dimensions or active blocks.