diff --git a/src/TeamsISO.App/HelpWindow.xaml b/src/TeamsISO.App/HelpWindow.xaml
index 244bbee..1e360e7 100644
--- a/src/TeamsISO.App/HelpWindow.xaml
+++ b/src/TeamsISO.App/HelpWindow.xaml
@@ -175,7 +175,13 @@
                                        FontSize="12"
                                        Foreground="{DynamicResource Wd.Text.Secondary}"
                                        TextWrapping="Wrap"
-                                       Text="REST API (default :9755) and OSC bridge (default :9000) are off by default. Enable from Settings → DISPLAY. Stream Deck / Companion / TouchOSC can drive ISO toggles, presets, recording, mute/camera/leave, and marker drops. See docs/CONTROL-SURFACE.md for the full vocabulary."
+                                       Text="REST API (default :9755) and OSC bridge (default :9000) are off by default. Enable from Settings → DISPLAY. Stream Deck / Companion / TouchOSC can drive ISO toggles, presets, recording, mute/camera/leave, and marker drops."
+                                       Margin="0,0,0,8"/>
+                            <TextBlock Style="{StaticResource Wd.Text.Body}"
+                                       FontSize="12"
+                                       Foreground="{DynamicResource Wd.Text.Secondary}"
+                                       TextWrapping="Wrap"
+                                       Text="LAN-reachable mode (DISPLAY tab) makes the surfaces reachable from other machines on the same network — useful for headless host PC + thin client setups. Closed-network only; first-time use requires a one-shot 'netsh http add urlacl' (see docs/CONTROL-SURFACE.md)."
                                        Margin="0,0,0,8"/>
                             <TextBlock Style="{StaticResource Wd.Text.Mono}"
                                        FontSize="11"