---
title: "Developer corner"
manual: "Frontend Edit"
version: "2.6"
source: "DeveloperCorner/Index.rst"
rendered: "2026-10-01T07:11:45+00:00"
---

# Developer corner {#developer-corner}

How the extension works internally, and the APIs it offers to extend it.

**How it works**

Request flow, why permissions are decided server-side, and what the
client needs from your templates.

[Deep dive into concepts](Architecture.html#how-it-works)

**PSR-14 Events**

Add, remove or modify entries in the Edit Menu and the Toolbar.

[Customize the menus](Events.html#events)

**Data ViewHelper**

Add edit links for related records — e.g. every news item inside a
list plugin.

[Extend the Edit Menu](DataAttributes.html#data-attributes)

**Language handling**

Which language modes are supported and how the extension resolves the
record to edit.

[View language support](Languages.html#languages)

> [!NOTE]
> **See also**
>
> Looking for the template side? [Integration](../Integration/Index.html#integration) covers the required
> content element IDs, column markers and custom styling.

For UI that needs to run in the browser, see the [JavaScript API](JavaScriptApi.html#javascript-api).