Creating parameter connections
Parameter connections represent links between widgets.
- Click Dashboard options > Widget Communication. The Widget Communication dialog box is displayed.
 - Expand a widget in the Widgets and Parameters pane to reveal its parameters.
 - 
            Drag a parameter to the 
			 New Parameter Connection
			 field of the 
			 Parameter Connections pane. 
		  
            A parameter connection is created.
 - From each widget to include in the connection, drag a parameter of the same name and drop it on the parameter connection.
 - 
            As required, drag further parameters to the 
			 New Parameter Connection
			 field to create further parameter connections. 
		  
            You can create a parameter connection with only one parameter but this triggers a warning message. You should do this only while designing a dashboard. Remove the connection, or add further parameters before making the dashboard available to users.
 - By default, the values of the parameters in a connection are stored in the dashboard and used each time the dashboard is opened. If you want a certain widget to lead the parameter connection, select that widget from the Initial Value list. The selected widget becomes the leading widget.