You can access the OPC data source Edit Source dialog box in the following ways:
When an object is inserted from the Insert menu (in the configuration environment). In the Configuration panel, access the Data tab and set the data source via the Data Source Browser. Refer to The Data Source Browser for more information.
NOTE: The OPC data source is located under the Real Time node of the Data Sources tree.
When an object is inserted with the drag-and-drop method (Natural Presentation), either in the configuration or run-time environments. Refer to Dragging and Dropping Data Sources (Natural Presentation) for more information.
When an object is modified from the Configuration panel (Data tab). Double-click the data source to open the Edit Source dialog box
The Fully Qualified Item Name will be completed automatically. If necessary, change the item name.
Select the fields you want to display. To add all fields, click the Add All button, or to add a specific field, select the field and click the Add button. The fields to display appear in the Selected Fields list.