@Override
  public boolean isPastePossible(@NotNull DataContext dataContext) {
    if (myConfigurable.getSingleContextGroup() == null) return false;

    String s = CopyPasteManager.getInstance().getContents(DataFlavor.stringFlavor);
    return s != null && s.trim().startsWith("<template ");
  }
@Override
  public boolean isPastePossible(@NotNull DataContext dataContext)