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If a tour is available on a page, a <em>Tour</em> button will be visible in the toolbar. If you click this button the first tip of the tour will appear. The tour continues after clicking the <em>Next</em> button in the tip. To see a tour users must have the permission <em>Access tour</em> and JavaScript must be enabled in the browser
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Creating tours
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Tours can be written as YAML-documents with a text editor, or using the contributed <a href=':tour_ui'>Tour UI</a> module. For more information, see <a href=':doc_url'>the online documentation for writing tours</a>.
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What is a module?
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A <em>module</em> is a set of PHP, JavaScript, and/or CSS files that extends site features and adds functionality. A set of <em>Core modules</em> is distributed as part of the core software download. Additional <em>Contributed modules</em> can be downloaded separately from the <a href="https://www.drupal.org/project/project_module">Download & Extend page on drupal.org</a>.
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What is an Experimental module?
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An <em>Experimental</em> module is a module that is still in development and is not yet stable. Using Experimental modules on production sites is not recommended.
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What are installing and uninstalling?
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Installing a core or downloaded contributed module means turning it on, so that you can use its features and functionality. Uninstalling means turning it off and removing all of its configuration. A module cannot be uninstalled if another installed module depends on it, or if you have created content on your site using the module -- you would need to delete the content and uninstall dependent modules first.
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Extending overview
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See the related topics listed below for help performing tasks related to extending the functionality of your site.
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Additional resources
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<a href="https://www.drupal.org/docs/user_guide/en/understanding-modules.html">Concept: Modules (Drupal User Guide)</a>
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<a href="https://www.drupal.org/docs/user_guide/en/extend-chapter.html">Extending and Customizing Your Site (Drupal User Guide)</a>
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Uninstalling a module
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Installing a module
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Related topics
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See the <a href=":help_page">Help page</a> for more topics.
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The Configuration Manager module provides a user interface for importing and exporting configuration changes between installations of your website in different environments. Configuration is stored in YAML format. For more information, see the <a href=":url">online documentation for the Configuration Manager module</a>.
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Exporting the full configuration
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You can create and download an archive consisting of all your site's configuration exported as <em>*.yml</em> files on the <a href=":url">Export</a> page.
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Importing a full configuration
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You can upload a full site configuration from an archive file on the <a href=":url">Import</a> page. When importing data from a different environment, the site and import files must have matching configuration values for UUID in the <em>system.site</em> configuration item. That means that your other environments should initially be set up as clones of the target site. Migrations are not supported.
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You can review differences between the active configuration and an imported configuration archive on the <a href=":synchronize">Synchronize</a> page to ensure that the changes are as expected, before finalizing the import. The Synchronize page also shows configuration items that would be added or removed.
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Exporting a single configuration item
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You can export a single configuration item by selecting a <em>Configuration type</em> and <em>Configuration name</em> on the <a href=":single-export">Single export</a> page. The configuration and its corresponding <em>*.yml file name</em> are then displayed on the page for you to copy.
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Importing a single configuration item
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You can import a single configuration item by pasting it in YAML format into the form on the <a href=":single-import">Single import</a> page.
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Drupal 8 includes jQuery UI in core, however it is no longer actively maintained and has been marked deprecated. This module provides the jQuery UI asset library for any themes and modules that require it.
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For more information about the deprecation of jQuery UI, see this <a href=":change-record">change record</a>
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