@Override
  public @NotNull Content addContent(@NotNull String contentName,
                                     boolean reusable,
                                     final @NotNull JComponent component,
                                     boolean toOpenInNewTab,
                                     boolean isLockable) {
    return addContent(contentName, null, null, reusable, component, toOpenInNewTab, isLockable);
  }
@Override
  public @NotNull Content addContent(@NotNull String contentName,
                                     boolean reusable,
                                     final @NotNull JComponent component,
                                     boolean toOpenInNewTab,
                                     boolean isLockable)