def form model_or_url, options = {}, &block
      @items << UiBibz::Ui::Core::Navigations::NavbarForm.new(model_or_url, options, &block)
    end
def form model_or_url, options = {}, &block
      @items << UiBibz::Ui::Core::Navigations::NavbarForm.new(model_or_url, options, &block)
    end
Add navbar form items
 See UiBibz::Ui::Core::NavbarForm