help: Add "View stream subscribers" page.

Documents how to view stream subscribers via settings and
the right sidebar.

Fixes #28887.

help/add-or-remove-users-from-a-stream.md

@@ -127,11 +127,7 @@ subscribe the user.
 
 1. Click the **Unsubscribe** button in that row.
 
-!!! tip ""
-
-    You can also hover over a stream in the left sidebar, click on the
-    **ellipsis** (<i class="zulip-icon zulip-icon-more-vertical"></i>), and
-    select **Stream settings** to access the **Subscribers** tab.
+{!stream-menu-subscribers-tab-tip.md!}
 
 {end_tabs}
 
@@ -163,3 +159,4 @@ This method is useful if you need to remove one user from multiple 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)
+* [View stream subscribers](/help/view-stream-subscribers)

help/include/sidebar_index.md

@@ -127,6 +127,7 @@
 * [Browse and subscribe to streams](/help/browse-and-subscribe-to-streams)
 * [Unsubscribe from a stream](/help/unsubscribe-from-a-stream)
 * [Create a stream](/help/create-a-stream)
+* [View stream subscribers](/help/view-stream-subscribers)
 * [Add or remove users from a stream](/help/add-or-remove-users-from-a-stream)
 * [Pin a stream](/help/pin-a-stream)
 * [Change the color of a stream](/help/change-the-color-of-a-stream)

help/include/stream-menu-subscribers-tab-tip.md

@@ -0,0 +1,5 @@
+!!! tip ""
+
+    You can also hover over a stream in the left sidebar, click on the
+    **ellipsis** (<i class="zulip-icon zulip-icon-more-vertical"></i>), and
+    select **Stream settings** to access the **Subscribers** tab.

help/manage-user-stream-subscriptions.md

@@ -91,5 +91,6 @@ stream](/help/unsubscribe-from-a-stream).
 * [Roles and permissions](/help/roles-and-permissions)
 * [Add or remove users from a stream](/help/add-or-remove-users-from-a-stream)
 * [Unsubscribe from a stream](/help/unsubscribe-from-a-stream)
+* [View stream subscribers](/help/view-stream-subscribers)
 
 [configure-invites]: /help/configure-who-can-invite-to-streams

help/view-stream-subscribers.md

@@ -0,0 +1,44 @@
+# View stream subscribers
+
+Who is subscribed to a stream determines who receives the messages sent there.
+All non-[guest](/help/guest-users) users can view public streams and subscribe
+themselves. Organization administrators can
+[configure](/help/configure-who-can-invite-to-streams) who can subscribe and
+unsubscribe other users to streams.
+
+## View stream subscribers
+
+{start_tabs}
+
+{tab|via-stream-settings}
+
+{relative|stream|all}
+
+1. Select a stream.
+
+{!select-stream-view-subscribers.md!}
+
+{!stream-menu-subscribers-tab-tip.md!}
+
+{tab|via-right-sidebar}
+
+1. Click on a stream in the left sidebar.
+
+1. View subscribers in the **In this stream** section in the right sidebar. If
+   the section is collapsed, click **In this stream** to reveal it.
+
+!!! tip ""
+
+    To see the full list of subscribers for a stream that has more than 600
+    people subscribed, scroll to the bottom of the **In this stream** section,
+    and click **View all subscribers**.
+
+{end_tabs}
+
+## Related articles
+
+* [Browse and subscribe to streams](/help/browse-and-subscribe-to-streams)
+* [Unsubscribe from a stream](/help/unsubscribe-from-a-stream)
+* [Manage a user's stream subscriptions](/help/manage-user-stream-subscriptions)
+* [Add or remove users from a stream](/help/add-or-remove-users-from-a-stream)
+* [Set default streams for new users](/help/set-default-streams-for-new-users)

zerver/lib/markdown/tabbed_sections.py

@@ -77,6 +77,7 @@ TAB_SECTION_LABELS = {
     "via-recent-conversations": "Via recent conversations",
     "via-inbox-view": "Via inbox view",
     "via-left-sidebar": "Via left sidebar",
+    "via-right-sidebar": "Via right sidebar",
     "instructions-for-all-platforms": "Instructions for all platforms",
     "public-streams": "Public streams",
     "private-streams": "Private streams",