def create_nav_with_dropdown(self, view):

    class FormWithFormLayout(Form):
        def __init__(self, view, name):
            super().__init__(view, name)
            self.use_layout(FormLayout())
            model_object = ModelObject()
            self.layout.add_input(TextInput(self, model_object.fields.text_input_field, placeholder=True), hide_label=True, help_text='This help displays inline')
            self.layout.add_input(PasswordInput(self, model_object.fields.password_field))

            self.define_event_handler(model_object.events.do_something)
            btn = self.add_child(ButtonInput(self, model_object.events.do_something, style='primary'))

    menu = Nav(view).use_layout(PillLayout(content_justification='justified'))
    menu.add_bookmark(self.view.as_bookmark().with_description('This page'))
    sub_menu = DropdownMenu(view)
    for bookmark in self.get_sub_menu_bookmarks():
        sub_menu.add_bookmark(bookmark)
    sub_menu.add_divider()
    sub_menu.add_header(H(view, 6, text='My header'))
    sub_menu.add_bookmark(self.get_divided_bookmark())
    sub_menu.add_divider()

    sub_menu.add_form(FormWithFormLayout(view, 'form_in_menu'))

    menu.add_dropdown('Dropdown title', sub_menu)

    return menu