@Override
  @Nullable
  @NonNls
  public String getHelpTopic() {
    String topic = mySelectedConfigurable != null ? mySelectedConfigurable.getHelpTopic() : null;
    return Objects.requireNonNullElse(topic, "reference.settingsdialog.project.structure.general");
  }
@Override
  @Nullable
  @NonNls
  public String getHelpTopic()