Adding a pond, stream, columns, windows and granite.

[arnoldgodo]

I would like to design a "Pond" and a "Stream" in the Courtyard" on the ground level between the building 30 inches deep and 5 feet wide.
Also, I would like to add Columns on the 3rd floors outside edge of the building walls in Architectural Home Designer 8.0. And add windows to the wall behind the columns. And how do you add "Granite" covering to the outside of the exterior walls.