# Customize File Manager externals Several aspects of File Manager externals such as color patterns, error messages and metadata attributes can be controlled server-side by editing a JSON configuration file named **configuration-wui.json** located here: ```shell /wlp/usr/servers//web/static/config ``` {% hint style="info" %} The name of the STENG directory depends on the number of STENGs installed. E.g. steng00, steng01, etc. {% endhint %} A reference **configuration-wui.json.sample** file is part of the package. It is stored at the same path as the configuration-wui.json: `/wlp/usr/servers//web/static/config`.\ This file contains the latest update to the file structure and can be used as reference. It is suggested not to delete it. In the following sections you will find: * the default file * how to customize the File Manager Login window with your company logo * how to customize a footer in the Login window and in the main page * how to configure metadata to be specified when uploading files --- # 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.primeur.com/data-mover-1.21/file-manager/customize-file-manager-externals.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.