Open a document containing imported conductors.
Select the modified XML file using External Systems.
Select Tools > List Extra Conductors.
Select a electrical physical system.
The system checks whether or not all conductors and conductor groups
in the electrical physical system exist in the XML file and displays a list
of those that do not.
Select conductors and/or conductor groups in the list.
Selected conductors and/or conductor groups are highlighted.
Click Close when done.
Any conductors and conductor groups selected before you click
Close remain in the current selection. You can then, if
desired, delete them.