help_docs: Document subscribing a user to stream via mention.

Updates the help center documentation on subscribing users to
streams to include description for doing so via mentioning a
user while composing a message.

Fixes #21796.
This commit is contained in:
Lauryn Menard
2022-04-21 20:34:33 +02:00
committed by Tim Abbott
parent 8d8bb88bb4
commit 7e9b1a13b0

View File

@@ -31,6 +31,21 @@ to a stream][configure-invites].
To add users in bulk, you can copy members from an
existing stream or [user group](/help/user-groups).
### Mentioning a user in the compose box (alternate method)
When you [mention a user](/help/mention-a-user-or-group) while composing
a message, an alert banner appears above the compose box if they are not
subscribed to the stream.
Click the **Subscribe them** button on the banner to add the user to the
stream. You will not see the button if you don't have permission to
subscribe the user.
!!! tip ""
You do not have to send the message you are composing for
the user to be subscribed this way.
## Remove users from a stream
{!admin-only.md!}
@@ -80,3 +95,5 @@ This method is useful if you need to remove one user from multiple streams.
* [Manage a user's stream subscriptions](/help/manage-user-stream-subscriptions)
* [Restrict stream invitation](/help/configure-who-can-invite-to-streams)
* [Set default streams for new users](/help/set-default-streams-for-new-users)
* [Roles and permissions](/help/roles-and-permissions)
* [Mention a user or group](/help/mention-a-user-or-group)