docs/main/end-user-guide/preferences/manage-advanced-options.mdx
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<PlanAvailability slug="all-commercial" />Using Mattermost in a web browser or the desktop app, you can customize advanced Mattermost options based on your preferences. Select the gear icon next to your profile picture, then select Advanced.
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 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.
<Tabs> <TabItem value="web-desktop" label="Web/Desktop">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 `````.
</TabItem> <TabItem value="mobile" label="Mobile">This option isn't something you can set using the mobile app.
</TabItem> </Tabs>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.
<Tabs> <TabItem value="web-desktop" label="Web/Desktop">Select Enable Post Formatting to show your messages as raw text only that includes Markdown syntax.
</TabItem> <TabItem value="mobile" label="Mobile">This option isn't something you can set using the mobile app.
</TabItem> </Tabs>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.
<Tabs> <TabItem value="web-desktop" label="Web/Desktop">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.
</TabItem> <TabItem value="mobile" label="Mobile">This option isn't something you can set using the mobile app.
</TabItem> </Tabs>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. Deactivating your account removes your ability to access Mattermost, and disables all email and mobile notifications.
Select Deactivate Account to deactivate your Mattermost user account.
</TabItem> <TabItem value="mobile" label="Mobile">This option isn't applicable to the mobile app.
</TabItem> </Tabs>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. Deleting your account permanently removes your user account and profile information from Mattermost. This action cannot be undone.
Select Delete Account to permanently delete your Mattermost user account. You'll be asked to confirm this action before proceeding.
</TabItem> <TabItem value="mobile" label="Mobile">This option isn't applicable to the mobile app.
</TabItem> </Tabs>You can disable key Mattermost features temporarily to help isolate issues while debugging Mattermost, if your system admin enables your ability to do so. We don't recommend leaving these settings enabled for an extended period of time as they can negatively impact your user experience.
<Tabs> <TabItem value="web-desktop" label="Web/Desktop">Select Performance Debugging to disable one or more of the following Mattermost features:
You may need to refresh Mattermost to see these settings take effect.
</TabItem> <TabItem value="mobile" label="Mobile">This option isn't something you can set using the mobile app.
</TabItem> </Tabs>You can choose where to start viewing unread messages in all channels you're a member of.
<Tabs> <TabItem value="web-desktop" label="Web/Desktop">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.
</TabItem> <TabItem value="mobile" label="Mobile">This option isn't something you can set using the mobile app.
</TabItem> </Tabs>By default, message drafts 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.
<Tabs> <TabItem value="web-desktop" label="Web/Desktop">Select Allow message drafts to sync with the server to disable server-synchronized drafts.
</TabItem> <TabItem value="mobile" label="Mobile">This option isn't applicable to the mobile app.
</TabItem> </Tabs>You can delete local Mattermost files from your mobile device using the mobile app.
<Tabs> <TabItem value="web-desktop" label="Web/Desktop">This option isn't applicable to the web or desktop app instance of Mattermost.
</TabItem> <TabItem value="mobile" label="Mobile">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 on the mobile app.
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