upstream-mattermost/docs/main/end-user-guide/preferences/manage-advanced-options.mdx

---
title: "Manage advanced options"
---
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Using Mattermost in a web browser or the desktop app, you can customize advanced Mattermost options based on your preferences. Select the gear icon <img src={useBaseUrl('/img/ui/settings-outline_F08BB.svg')} alt="Use the Settings icon to customize your Mattermost user experience." className="theme-icon" /> next to your profile picture, then select **Advanced**.

## Send messages on CTRL/⌘+ENTER

By default, you send messages in Mattermost by composing a message in the message text box at the bottom of the Mattermost screen and selecting the **Send** <img src={useBaseUrl('/img/ui/send_F048A.svg')} alt="Select the Send icon to post your message." className="theme-icon" /> icon or by pressing <kbd>Enter</kbd> on Windows or Linux, or <kbd>↵</kbd> on Mac.

And you enter new text lines by pressing <kbd>Shift</kbd> <kbd>Enter</kbd> on Windows or Linux, or <kbd>⇧</kbd> <kbd>↵</kbd> on Mac before sending the message.

You can chance this message send behavior.

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If you find you're accidentally sending messages too soon, you can configure Mattermost to require an extra keystroke to send all messages, or for code blocks.

Select **Send Messages on CTRL/⌘ + ENTER \> Edit** to configure how messages are sent in Mattermost.

You can configure Mattermost to send messages by pressing <kbd>Ctrl</kbd> <kbd>Enter</kbd> on Windows or Linux, or <kbd>⌘</kbd> <kbd>↵</kbd> on Mac for all messages or only for code blocks that start with ``\`\`\`.

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This option isn't something you can set using the mobile app.

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## Enable post formatting

By default, Mattermost formats your messages with Markdown to show links, emojis, text styles, and line breaks. You can control whether your messages show the formatting or show text only.

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Select **Enable Post Formatting** to show your messages as raw text only that includes Markdown syntax.

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This option isn't something you can set using the mobile app.

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## Enable join/leave messages

By default, Mattermost shows you system messages when users join or leave channels you're a member of. You can hide these messages if preferred.

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Select **Enable Join/Leave Messages** to hide the system messages when users join or leave channels you're a member of. When users are added to or removed from a channel, a system message displays even when you've disabled this feature.

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This option isn't something you can set using the mobile app.

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## Deactivate account

You can deactivate your account if you access Mattermost using an email address and password, and when your system admin has [enabled your ability to do so](/administration-guide/configure/site-configuration-settings#enable-account-deactivation). Deactivating your account removes your ability to access Mattermost, and disables all email and mobile notifications.

<Important>

- If you deactive your account, you must contact your system admin to have it reactivated.
- If you access Mattermost using another authentication method, such as AD/LDAP or SAML, or use accounts that don't have this setting available, contact your system admin to deactivate your account in the System Console.

</Important>

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Select **Deactivate Account** to deactivate your Mattermost user account.

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This option isn't applicable to the mobile app.

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## Delete account

From Mattermost v10.11, you can permanently delete your account if you access Mattermost using an email address and password, and when your system admin has [enabled your ability to do so](/administration-guide/configure/user-management-configuration-settings#delete-users). Deleting your account permanently removes your user account and profile information from Mattermost. This action cannot be undone.

<Important>

- **Account deletion is permanent and cannot be undone.** Once deleted, your account and profile data cannot be recovered.
- Your message history and file uploads will remain in channels but will show as "Deleted User" instead of your name.
- If you access Mattermost using another authentication method, such as AD/LDAP or SAML, this option may not be available. Contact your system admin for account deletion.
- Consider [deactivating your account](/end-user-guide/preferences/manage-advanced-options#deactivate-account) instead if you might want to reactivate it in the future.

</Important>

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Select **Delete Account** to permanently delete your Mattermost user account. You'll be asked to confirm this action before proceeding.

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This option isn't applicable to the mobile app.

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## Performance debugging

You can disable key Mattermost features temporarily to help isolate issues while debugging Mattermost, if your system admin [enables your ability to do so](/administration-guide/configure/environment-configuration-settings#enable-client-debugging). We don't recommend leaving these settings enabled for an extended period of time as they can negatively impact your user experience.

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Select **Performance Debugging** to disable one or more of the following Mattermost features:

- Client-side plugins
- telemetry events sent from the client
- "User is typing..." messages

You may need to refresh Mattermost to see these settings take effect.

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This option isn't something you can set using the mobile app.

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## Scroll position when viewing unread channels

You can choose where to start viewing unread messages in all channels you're a member of.

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Select **Scroll position when viewing an unread channel** to choose your scroll position starting point as where you left off or at the newest message.

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This option isn't something you can set using the mobile app.

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## Allow message drafts to sync with the server

By default, [message drafts](/end-user-guide/collaborate/send-messages#draft-messages) are synchronized on the Mattermost server and accessible everywhere you access Mattermost using a web browser or the desktop app. You can disable server-synchronized drafts and limit drafts to your current Mattermost client, if preferred.

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Select **Allow message drafts to sync with the server** to disable server-synchronized drafts.

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This option isn't applicable to the mobile app.

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## Delete local files

You can delete local Mattermost files from your mobile device using the mobile app.

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This option isn't applicable to the web or desktop app instance of Mattermost.

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Access **Settings** by tapping on your profile picture. Then, tap **Advanced Settings** and **Delete local files**.

Only data specific to the current Mattermost server is removed from your device. You'll need to repeat this process for each [Mattermost workspace you're connected to](/end-user-guide/preferences/connect-multiple-workspaces) on the mobile app.

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