===== Adding a Calculator Node to the Hiearchy =====

Click on the **Diagram** window to activate the toolbar.

Click on the Add Calculator icon {{trainingtutorial:addcalculatoricon.jpg}} on the toolbar 

Drag mouse to create a dotted line rectangle in the **Diagram** window.

{{trainingtutorial:calculatordraw.jpg}}

On mouse up the Calculator Information dialogue appears. Enter the appropriate information and click OK.

{{trainingtutorial:calculatorinfo.jpg}}

The Population Calculator node now appears as a yellow box in the **Diagram** window.