Surfaces can be added to layout in 2 ways.
Drag and drop
Surface can be dragged and dropped from the Surface shapes pane to the Surface layout.
Surface addition dialog
Surface can be added to layout by clicking on the Surface. This launches the Surface addition dialog. The count and surface physical properties can be entered. Row and Column describe the number of rows and column in the Surface respectively. User can also modify these properties after adding the surface to the layout.