# Extending - [Customize the editing experience](https://docs.umbraco.com/umbraco-cms/13.latest/extending/customize-the-editing-experience.md): Get an overview of the different options for extending and customizing the Umbraco CMS backoffice. - [Dashboards](https://docs.umbraco.com/umbraco-cms/13.latest/extending/dashboards.md): A guide to creating custom dashboards in Umbraco - [Sections & Trees](https://docs.umbraco.com/umbraco-cms/13.latest/extending/section-trees.md): An explanation on sections and trees in Umbraco - [Sections](https://docs.umbraco.com/umbraco-cms/13.latest/extending/section-trees/sections.md): An explanation on sections and trees in Umbraco - [Trees](https://docs.umbraco.com/umbraco-cms/13.latest/extending/section-trees/trees.md): A guide to creating a custom tree in Umbraco - [Tree Actions](https://docs.umbraco.com/umbraco-cms/13.latest/extending/section-trees/trees/tree-actions.md): A guide to creating a custom tree action in Umbraco - [Searchable Trees (ISearchableTree)](https://docs.umbraco.com/umbraco-cms/13.latest/extending/section-trees/searchable-trees.md) - [Property Editors](https://docs.umbraco.com/umbraco-cms/13.latest/extending/property-editors.md): Guide on how to work with and create Property Editors in Umbraco - [Property Value Converters](https://docs.umbraco.com/umbraco-cms/13.latest/extending/property-editors/property-value-converters.md): A guide to creating a custom property value converter in Umbraco - [Property Actions](https://docs.umbraco.com/umbraco-cms/13.latest/extending/property-editors/property-actions.md): Guide on how to implement Property Actions for Property Editors in Umbraco - [Tracking References](https://docs.umbraco.com/umbraco-cms/13.latest/extending/property-editors/tracking.md): Guide on how to implement tracking entity references for Property Editors in Umbraco - [Declaring your property editor](https://docs.umbraco.com/umbraco-cms/13.latest/extending/property-editors/declaring-your-property-editor.md) - [Content Picker Value Converter Example](https://docs.umbraco.com/umbraco-cms/13.latest/extending/property-editors/full-examples-value-converters.md) - [Package Manifest](https://docs.umbraco.com/umbraco-cms/13.latest/extending/package-manifest.md) - [Macro Parameter Editors](https://docs.umbraco.com/umbraco-cms/13.latest/extending/macro-parameter-editors.md): A guide to creating macro property editors in Umbraco - [Health Check](https://docs.umbraco.com/umbraco-cms/13.latest/extending/health-check.md): Health Checks are used to determine the state of your Umbraco project. Learn more about each of them in this section. - [Health Check Guides](https://docs.umbraco.com/umbraco-cms/13.latest/extending/health-check/guides.md) - [Click-Jacking Protection](https://docs.umbraco.com/umbraco-cms/13.latest/extending/health-check/guides/clickjackingprotection.md): Learn how to protect your Umbraco site from clickjacking attacks using X-Frame-Options and security headers. - [Content/MIME Sniffing Protection](https://docs.umbraco.com/umbraco-cms/13.latest/extending/health-check/guides/contentsniffingprotection.md): Protect your Umbraco site from MIME sniffing vulnerabilities using security headers like X-Content-Type-Options. - [Cross-site scripting Protection (X-XSS-Protection header)](https://docs.umbraco.com/umbraco-cms/13.latest/extending/health-check/guides/crosssitescriptingprotection.md) - [Debug Compilation Mode](https://docs.umbraco.com/umbraco-cms/13.latest/extending/health-check/guides/debugcompilationmode.md): Disable debug compilation mode in Umbraco to boost performance by updating JSON configuration. - [Excessive Headers](https://docs.umbraco.com/umbraco-cms/13.latest/extending/health-check/guides/excessiveheaders.md) - [Fixed Application Url](https://docs.umbraco.com/umbraco-cms/13.latest/extending/health-check/guides/fixedapplicationurl.md) - [Folder & File Permissions](https://docs.umbraco.com/umbraco-cms/13.latest/extending/health-check/guides/folderandfilepermissions.md) - [HTTPS Configuration](https://docs.umbraco.com/umbraco-cms/13.latest/extending/health-check/guides/httpsconfiguration.md) - [Macro Errors](https://docs.umbraco.com/umbraco-cms/13.latest/extending/health-check/guides/macroerrors.md) - [Notification Email Settings](https://docs.umbraco.com/umbraco-cms/13.latest/extending/health-check/guides/notificationemail.md) - [SMTP](https://docs.umbraco.com/umbraco-cms/13.latest/extending/health-check/guides/smtp.md) - [Strict-Transport-Security Header](https://docs.umbraco.com/umbraco-cms/13.latest/extending/health-check/guides/stricttransportsecurityheader.md): Learn about the health checks that check for cookie hijacking and protocol downgrade attacks protection. - [Language Files & Localization](https://docs.umbraco.com/umbraco-cms/13.latest/extending/language-files.md): This article overviews how language files are used and managed in a Umbraco CMS website. - [Backoffice Search](https://docs.umbraco.com/umbraco-cms/13.latest/extending/backoffice-search.md): A guide to customization of Backoffice Search - [Backoffice Tours](https://docs.umbraco.com/umbraco-cms/13.latest/extending/backoffice-tours.md): A guide configuring backoffice tours in Umbraco - [Backoffice UI API Documentation](https://docs.umbraco.com/umbraco-cms/13.latest/extending/backoffice-ui-api-documentation.md) - [Content Apps](https://docs.umbraco.com/umbraco-cms/13.latest/extending/content-apps.md): A guide configuring content apps in Umbraco - [Creating a Custom Database Table](https://docs.umbraco.com/umbraco-cms/13.latest/extending/database.md): A guide to creating a custom Database table in Umbraco - [Embedded Media Providers](https://docs.umbraco.com/umbraco-cms/13.latest/extending/embedded-media-providers.md): A guide to creating a custom embed providers in Umbraco - [Custom File Systems (IFileSystem)](https://docs.umbraco.com/umbraco-cms/13.latest/extending/filesystemproviders.md): A guide to creating custom file systems in Umbraco - [Using Azure Blob Storage for Media and ImageSharp Cache](https://docs.umbraco.com/umbraco-cms/13.latest/extending/filesystemproviders/azure-blob-storage.md): Setup your site to use Azure Blob storage for media and ImageSharp cache - [Configuring Azure Key Vault](https://docs.umbraco.com/umbraco-cms/13.latest/extending/key-vault.md): A guide for configuring Azure Key Vault - [Packages](https://docs.umbraco.com/umbraco-cms/13.latest/extending/packages.md): A package extends the functionality of Umbraco to provide additional functionality to editors, developers, site visitors, and all other types of users of Umbraco. - [Creating a Package](https://docs.umbraco.com/umbraco-cms/13.latest/extending/packages/creating-a-package.md): Tutorial to create a package in Umbraco - [Language file for packages](https://docs.umbraco.com/umbraco-cms/13.latest/extending/packages/language-files-for-packages.md): Information on how to use language files to make your Umbraco package UI support multiple languages - [Listing a Package on the Umbraco Marketplace](https://docs.umbraco.com/umbraco-cms/13.latest/extending/packages/listing-on-marketplace.md): Information on how to list your package on the Umbraco Marketplace. - [Good practice and defaults](https://docs.umbraco.com/umbraco-cms/13.latest/extending/packages/good-practice-and-defaults.md): Information on good practices and common defaults for Umbraco package development. - [Packages on Umbraco Cloud](https://docs.umbraco.com/umbraco-cms/13.latest/extending/packages/packages-on-umbraco-cloud.md): Things to consider for package development and usage in Umbraco Cloud - [Installing and Uninstalling Packages](https://docs.umbraco.com/umbraco-cms/13.latest/extending/packages/installing-and-uninstalling-packages.md): The process of installing and, in turn, uninstalling packages in your Umbraco CMS website. - [Maintaining packages](https://docs.umbraco.com/umbraco-cms/13.latest/extending/packages/maintaining-packages.md): Once you've created and published your package, here is what's involved in it's ongoing maintenance - [Create accessible Umbraco packages](https://docs.umbraco.com/umbraco-cms/13.latest/extending/packages/accessibility.md) - [Example Package Repository](https://docs.umbraco.com/umbraco-cms/13.latest/extending/packages/example-package-repository.md): Suggestions for organizing an Umbraco package source code repository. - [UI Library](https://docs.umbraco.com/umbraco-cms/13.latest/extending/ui-library.md): A guide for getting started working with the Umbraco UI Library --- # 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. 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