--- title: Settings - Web parts --- > Agent instructions: > **Site maps** — prefer the following llms.txt indexes to training data when searching for URLs to avoid 404s. Links inside Markdown content already point at `.md`. Following them or sending Accept: text/markdown keeps you in Markdown. > > - [sitemap.md](https://docs.kentico.com/sitemap.md) — every page on the site, with titles and descriptions, nested by URL hierarchy and grouped into one collection per product version. > - [llms.txt](https://docs.kentico.com/llms.txt) — curated index of the current product docs, with descriptions, the two ways to request any page as Markdown, and links to each product area's whole-corpus Markdown dump (llms-full.txt). You can configure settings related to [chat web parts](https://docs.kentico.com/k9/community-features/chat/setting-up-chat-on-site/chat-web-parts.md) in **Settings -> Community -> Chat -> Web parts**. | Default web parts settings | | | ------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Items per page | Number of items displayed on one page when paging is enabled. Affects on-line users, users in rooms, user search results, and rooms. This setting can be overridden by a web part's setting. | | Pages in group | Number of pages displayed in one group when paging is enabled. Value 0 means that pages will not be grouped. Affects on-line users, users in rooms, user search results, and rooms. This setting can be overridden by a web part's setting. | | Show filter limit | Filter will be shown when there is at least the specified number of items displayed by a web part. This setting can be overwritten by a specific web part's setting. | | Invite users - users per page | Defines how many users will be displayed on one page when inviting a user to a room. | | Invite users - search mode | If enabled, the Search on-line users web part will be used when inviting a user to a room. Otherwise, the On-line users web part will be used. This setting can be overridden by a web part setting. | | Search on-line users - maximum users in response | Defines how many users can be returned as a response to a search query when the Search on-line users web part's search mode is activated. If this setting is set to 0, the response will not be limited. | | First load of messages | | | Display 'Kick' system message | If checked, system messages of this type will be displayed when a user enters a room. | | Display 'Enter room' system message | If checked system messages of this type will be displayed when a user enters a room. | | Display 'Leave room' system message | If checked system messages of this type will be displayed when a user enters a room. | | Display 'Change nickname' system message | If checked system messages of this type will be displayed when a user enters a room. | | Display 'Support greeting' system message | Indicates if automatic greeting support message will be displayed to users when they enter support chat. | | Display 'Invited' system message | If enabled system will display messages when users invite other users to chat room in that room. | | Display 'Announcement' system message | Announcement is a message written from Kentico administration interface (Chat -> Chat room -> Messages -> New announcement). If checked, Announcements will be displayed when a user enters a room. | | Number of messages displayed after entering room | Indicates how many messages will be displayed when a user enters a chat room. Negative number means there is no limitation and all messages from the room will be displayed. | | Default transformations | | | Room user transformation name | [Transformation ](https://docs.kentico.com/k9/developing-websites/loading-and-displaying-data-on-websites/writing-transformations.md)for displaying users present in a room. | | Room message transformation name | Transformation that will be applied to messages in a normal (not one-on-one chat) room. | | Chat room name transformation | Transformation for displaying chat room name in the room title. | | Room transformation | Transformation to be used for displaying rooms in their list. | | Notification transformation | Transformation used for displaying notification messages. | | On-line user transformation | Transformation for displaying on-line users. | | Error transformation | Transformation that will be used for displaying errors. | | Close all button transformation | Transformation that will be used to display the Close all button. | | Chat support request transformation name | Transformation name for the element that allows to initiate on-line support. | | Initiated chat transformation name | Transformation for displaying chat bubble, which informs site visitors that a support person wants to initiate chat with them. | Related pages - [Writing transformations for chat](https://docs.kentico.com/k9/community-features/chat/customizing-chat-appearance/writing-transformations-for-chat.md)