Click Scope on the AVEVA toolbar. The Scope window is displayed.

If the current element is always to be within the scope, click the CE checkbox. Note this will mean that if/when the CE changes, so will the scope of the data source.

To add the current element to the source, click the Add CE button. The current element is then added to the Root Elements list. To add further elements, make those elements the Current Element and click the button again. A list of root elements can be compiled in this way.

To remove an element from the list of Root Elements, select it in the list and click Remove.

If the scope of the data source is to be restricted to elements either partially within or completely within a specified volume, select either the Partially Within... or Completely Within... option from list of values in the Volume field.

The Volume window is then displayed:

Specify the required volume and click OK.

From the From drop-down list specify whether the scope is to be restricted to elements in the drawlist or in the obstruction list. Otherwise leave the drop-down set to the default selection of MDB, meaning that all elements in the database may be in the scope.

Click OK to save the scope settings and exit the window. Click Cancel to exit the window without saving.