# Discrete Function Tool

The Discrete Function Tool can be activated either from the Discrete Function Tool item of the Edit Menu or from the discrete function tool button in the Edit Mode Tool Bar (the button shown in Figure 1).

Figure 1: The Discrete Function Tool button from the Edit Mode Tool Bar.

When the Discrete Function Tool is activated (when the discrete function tool button is pressed) you can place a discrete function node in the Network Pane: Simply click the mouse somewhere within the Network Pane. When you have placed the discrete function node the select tool is normally activated again. If you want keep the Discrete Function Tool activated (to create a series of nodes) hold down the SHIFT key while placing a node.