# User Interface The user interface is the visual and interactive layer of the system. It helps users navigate, access features, and manage tasks efficiently. This section introduces the core elements that remain visible throughout the product to ensure seamless interaction. ## Core Interface Elements * [Header Bar](https://docs.fact-finder.com/docs/user-interface/the-header-bar) – Always visible at the top; quick access to channel, A/B tests, global actions, and user menu. * [Sidebar](https://docs.fact-finder.com/docs/user-interface/the-side-bar) – Primary navigation organized by sections and features; supports customized menus. * [Editing Configurations / Managing Transactions](https://docs.fact-finder.com/docs/user-interface/editing-configurations-managing-transactions) – How to enter edit mode, lock settings, and manage changes. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.fact-finder.com/docs/user-interface.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.