AutoConnect generates a menu dynamically depending on the instantiated [AutoConnectAux](acintro.md#how-it-works) at the sketch executing time. Usually, it is a collection of [AutoConnectElement](acelements.md). In addition to this, you can generate a menu from only AutoConnectAux, without AutoConnectElements. That is, you can easily make the built-in menu with legacy sketches of yours.
## Basic mechanism of menu generation
The sketch can display the [AutoConnect menu](menu.md) by following three patterns depending on AutoConnect-API usage.
: It is the most basic menu for only connecting WiFi. Sketch can automatically display this menu with the basic call sequence of the AutoConnect API which invokes [AutoConnect::begin](api.md#begin) and [AutoConnect::handleClient](api.md#handleclient).
: It is an extended menu that appears when the sketch consists of the custom Web pages with [AutoConnectAux](acintro.md#how-it-works) and AutoConnectElements. Refer to [Custom Web pages section](acintro.md#custom-web-pages-in-autoconnect-menu).
: It is for the legacy sketches using the **on** handler of ESP8266WebServer/WebServer(for ESP32) class natively and looks the same as the extra menu as above.
The mechanism to generate the AutoConnect menu is simple. It will insert the item as `<li>` tag generated from the [**title**](apiaux.md#autoconnectaux) and [**uri**](apiaux.md#autoconnectaux) member variable of the AutoConnectAux object to the menu list of AutoConnect's built-in HTML. Therefore, the legacy sketches can invoke the web pages from the AutoConnect menu with just declaration the title and URI to AutoConnectAux.
## Place the item for the legacy sketches on the menu
To implement this with your sketch, use only the [AutoConnectAux](apiaux.md#autoconnectaux) constructed with the title and URI of that page. [AutoConnectElements](acelements.md) is not required.
The AutoConnect library package contains an example sketch for ESP8266WebServer known as FSBrowser. Its example is a sample implementation that supports AutoConnect without changing the structure of the original FSBrowser and has the menu item for **Edit** and **List**.
4. Change the menu title to FSBrowser using [AutoConnectConfig::title](apiconfig.md#title).
5. Join the legacy pages to AutoConnect declared at step #1 using [AutoConnect::join](api.md#join).<br>Joining multiple at one time with [std::vector](https://ja.cppreference.com/w/cpp/container/vector/vector)'s' [list initialization](https://en.cppreference.com/w/cpp/language/list_initialization).
6. According to the basic procedure of AutoConnect.<br>Establish a connection with [AutoConnect::begin](api.md#begin) and perform [AutoConnect::handleClient](api.md#handleclient) in **loop()**.
<iclass="fa fa-code"></i> **Modification for FSBrowser** <small>(part of sketch code)</small>