Create a variable sensor

On the toolbar on the left, click the Sensors tab.

On the Sensors pane, click the Variable Sensor button .

In the Variable Table dialog box, click the row button for the variable you want to track as a sensor.

In the Variable Sensor Parameters dialog box, click the Add Variable button .

In the Variable Sensor Parameters dialog box, define the sensor parameters, and then click OK.

The sensor is displayed on the Sensors pane.