Use the Functions palette to create the block diagram. The Functions palette as shown in Figure 2.6 contains the sub VIs, functions, and constants that are available only on the block diagram. You can access the Functions palette from the block diagram by selecting View»Functions Palette. You can also right-click an open space on the block diagram to display the Functions palette. The VIs and functions located on the Functions palette depend on the palette view currently selected. The VIs and functions are located on subpalettes based on the types of VIs and functions.