//Register the lookup change listeners to all children
for ( StructPart child : node.getChildren() ) {
addChildLookupListener( child );
}
structureListener = new StructureListener() {
public void childAdded( @NotNull StructureChangedEvent event ) {
addChildLookupListener( event.getStructPart() );
//Notify the listeners that an entry has been added
int index = event.getIndex();