private void addExternalDepNode(PackageDependenciesNode node) {
    if (myExternalNode == null) {
      myExternalNode = new GeneralGroupNode("External Dependencies", AllIcons.Nodes.PpLibFolder, myProject);
      myRoot.add(myExternalNode);
    }

    myExternalNode.add(node);
  }
private void addExternalDepNode(PackageDependenciesNode node)