diff --git a/flutter/lib/consts.dart b/flutter/lib/consts.dart
index 59d0576a1..65e8611c3 100644
--- a/flutter/lib/consts.dart
+++ b/flutter/lib/consts.dart
@@ -39,6 +39,7 @@ const String kWindowEventActiveSession = "active_session";
 const String kWindowEventGetRemoteList = "get_remote_list";
 const String kWindowEventGetSessionIdList = "get_session_id_list";
 
+const String kWindowEventSplit = "split";
 const String kWindowEventCloseForSeparateWindow = "close_for_separate_window";
 
 const String kOptionSeparateRemoteWindow = "enable-separate-remote-window";
diff --git a/flutter/lib/desktop/pages/desktop_home_page.dart b/flutter/lib/desktop/pages/desktop_home_page.dart
index 43c73b0b5..34916481c 100644
--- a/flutter/lib/desktop/pages/desktop_home_page.dart
+++ b/flutter/lib/desktop/pages/desktop_home_page.dart
@@ -570,6 +570,17 @@ class _DesktopHomePageState extends State<DesktopHomePage>
           forceRelay: call.arguments['forceRelay'],
           forceSeparateWindow: call.arguments['forceSeparateWindow'],
         );
+      } else if (call.method == kWindowEventSplit) {
+        final args = call.arguments.split(',');
+        int? windowId;
+        try {
+          windowId = int.parse(args[0]);
+        } catch (e) {
+          debugPrint("Failed to parse window id '${call.arguments}': $e");
+        }
+        if (windowId != null) {
+          await rustDeskWinManager.splitWindow(windowId, args[1], args[2]);
+        }
       }
     });
     _uniLinksSubscription = listenUniLinks();
diff --git a/flutter/lib/desktop/pages/desktop_setting_page.dart b/flutter/lib/desktop/pages/desktop_setting_page.dart
index 9072643ea..06555bc8d 100644
--- a/flutter/lib/desktop/pages/desktop_setting_page.dart
+++ b/flutter/lib/desktop/pages/desktop_setting_page.dart
@@ -6,7 +6,6 @@ import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_hbb/common.dart';
 import 'package:flutter_hbb/consts.dart';
-import 'package:flutter_hbb/utils/multi_window_manager.dart';
 import 'package:flutter_hbb/desktop/pages/desktop_home_page.dart';
 import 'package:flutter_hbb/desktop/pages/desktop_tab_page.dart';
 import 'package:flutter_hbb/models/platform_model.dart';
@@ -323,13 +322,6 @@ class _GeneralState extends State<_General> {
         'Separate remote window',
         kOptionSeparateRemoteWindow,
         isServer: false,
-        update: () {
-          final useSeparateWindow =
-              mainGetLocalBoolOptionSync(kOptionSeparateRemoteWindow);
-          if (useSeparateWindow) {
-            rustDeskWinManager.separateWindows();
-          }
-        },
       ),
     ];
     // though this is related to GUI, but opengl problem affects all users, so put in config rather than local
diff --git a/flutter/lib/desktop/pages/remote_tab_page.dart b/flutter/lib/desktop/pages/remote_tab_page.dart
index 080895729..e4bbeba92 100644
--- a/flutter/lib/desktop/pages/remote_tab_page.dart
+++ b/flutter/lib/desktop/pages/remote_tab_page.dart
@@ -329,6 +329,22 @@ class _ConnectionTabPageState extends State<ConnectionTabPage> {
       ));
     }
 
+    if (tabController.state.value.tabs.length > 1) {
+      final splitAction = MenuEntryButton<String>(
+        childBuilder: (TextStyle? style) => Text(
+          translate('Split'),
+          style: style,
+        ),
+        proc: () async {
+          await DesktopMultiWindow.invokeMethod(
+              kMainWindowId, kWindowEventSplit, '${windowId()},$key,$sessionId');
+          cancelFunc();
+        },
+        padding: padding,
+      );
+      menu.insert(1, splitAction);
+    }
+
     if (perms['keyboard'] != false && !ffi.ffiModel.viewOnly) {
       if (perms['clipboard'] != false) {
         menu.add(RemoteMenuEntry.disableClipboard(sessionId, padding,
diff --git a/flutter/lib/utils/multi_window_manager.dart b/flutter/lib/utils/multi_window_manager.dart
index b0959246b..fb576e426 100644
--- a/flutter/lib/utils/multi_window_manager.dart
+++ b/flutter/lib/utils/multi_window_manager.dart
@@ -43,33 +43,22 @@ class RustDeskMultiWindowManager {
   final List<int> _fileTransferWindows = List.empty(growable: true);
   final List<int> _portForwardWindows = List.empty(growable: true);
 
-  separateWindows() async {
-    for (final windowId in _remoteDesktopWindows.toList()) {
-      final String sessionIdList = await DesktopMultiWindow.invokeMethod(
-          windowId, kWindowEventGetSessionIdList, null);
-      final idList = sessionIdList.split(';');
-      if (idList.length <= 1) {
-        continue;
-      }
-      for (final idPair in idList.sublist(1)) {
-        final peerSession = idPair.split(',');
-        var params = {
-          'type': WindowType.RemoteDesktop.index,
-          'id': peerSession[0],
-          'session_id': peerSession[1],
-        };
-        await _newSession(
-          true,
-          WindowType.RemoteDesktop,
-          kWindowEventNewRemoteDesktop,
-          peerSession[0],
-          _remoteDesktopWindows,
-          jsonEncode(params),
-        );
-        await DesktopMultiWindow.invokeMethod(
-            windowId, kWindowEventCloseForSeparateWindow, peerSession[0]);
-      }
-    }
+  splitWindow(int windowId, String peerId, String sessionId) async {
+    var params = {
+      'type': WindowType.RemoteDesktop.index,
+      'id': peerId,
+      'session_id': sessionId,
+    };
+    await _newSession(
+      true,
+      WindowType.RemoteDesktop,
+      kWindowEventNewRemoteDesktop,
+      peerId,
+      _remoteDesktopWindows,
+      jsonEncode(params),
+    );
+    await DesktopMultiWindow.invokeMethod(
+        windowId, kWindowEventCloseForSeparateWindow, peerId);
   }
 
   newSessionWindow(
@@ -214,7 +203,8 @@ class RustDeskMultiWindowManager {
     }
     for (final windowId in wnds) {
       if (_activeWindows.contains(windowId)) {
-        return await DesktopMultiWindow.invokeMethod(windowId, methodName, args);
+        return await DesktopMultiWindow.invokeMethod(
+            windowId, methodName, args);
       }
     }
     return await DesktopMultiWindow.invokeMethod(wnds[0], methodName, args);
@@ -223,7 +213,7 @@ class RustDeskMultiWindowManager {
   List<int> _findWindowsByType(WindowType type) {
     switch (type) {
       case WindowType.Main:
-        return [0];
+        return [kMainWindowId];
       case WindowType.RemoteDesktop:
         return _remoteDesktopWindows;
       case WindowType.FileTransfer:
diff --git a/src/client/io_loop.rs b/src/client/io_loop.rs
index eee857f60..c24d0f54c 100644
--- a/src/client/io_loop.rs
+++ b/src/client/io_loop.rs
@@ -125,7 +125,18 @@ impl<T: InvokeUiSession> Remote<T> {
         .await
         {
             Ok((mut peer, direct, pk)) => {
-                self.handler.set_connection_type(peer.is_secured(), direct); // flutter -> connection_ready
+                let is_secured = peer.is_secured();
+                #[cfg(feature = "flutter")]
+                #[cfg(not(any(target_os = "android", target_os = "ios")))]
+                {
+                    self.handler
+                        .cache_flutter
+                        .write()
+                        .unwrap()
+                        .is_secured_direct
+                        .replace((is_secured, direct));
+                }
+                self.handler.set_connection_type(is_secured, direct); // flutter -> connection_ready
                 self.handler.update_direct(Some(direct));
                 if conn_type == ConnType::DEFAULT_CONN {
                     self.handler
diff --git a/src/lang/ca.rs b/src/lang/ca.rs
index 326ef5dd0..d285805f5 100644
--- a/src/lang/ca.rs
+++ b/src/lang/ca.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/cn.rs b/src/lang/cn.rs
index f52cb9b61..3e93a7869 100644
--- a/src/lang/cn.rs
+++ b/src/lang/cn.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", "对标签进行排序"),
         ("Separate remote window", "使用独立远程窗口"),
         ("separate window", "独立窗口"),
+        ("Split", "拆分"),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/cs.rs b/src/lang/cs.rs
index a61c46001..8bc165f40 100644
--- a/src/lang/cs.rs
+++ b/src/lang/cs.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/da.rs b/src/lang/da.rs
index c3f43b7f1..c44973bbf 100644
--- a/src/lang/da.rs
+++ b/src/lang/da.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/de.rs b/src/lang/de.rs
index e59eb63d6..24a59d4fc 100644
--- a/src/lang/de.rs
+++ b/src/lang/de.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", "Tags sortieren"),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/el.rs b/src/lang/el.rs
index 83160cae7..ccfd1c8ec 100644
--- a/src/lang/el.rs
+++ b/src/lang/el.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/eo.rs b/src/lang/eo.rs
index 47792961a..9cc79a98a 100644
--- a/src/lang/eo.rs
+++ b/src/lang/eo.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/es.rs b/src/lang/es.rs
index b57474793..2d33c5756 100644
--- a/src/lang/es.rs
+++ b/src/lang/es.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", "Ordenar etiquetas"),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/fa.rs b/src/lang/fa.rs
index 6f2531b46..f57687e53 100644
--- a/src/lang/fa.rs
+++ b/src/lang/fa.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/fr.rs b/src/lang/fr.rs
index 679620a99..bab0ef06b 100644
--- a/src/lang/fr.rs
+++ b/src/lang/fr.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/hu.rs b/src/lang/hu.rs
index 8eacb75d3..02b0ed900 100644
--- a/src/lang/hu.rs
+++ b/src/lang/hu.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/id.rs b/src/lang/id.rs
index 2d12c31e5..608b00cd1 100644
--- a/src/lang/id.rs
+++ b/src/lang/id.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/it.rs b/src/lang/it.rs
index 5118adc16..d1c71c385 100644
--- a/src/lang/it.rs
+++ b/src/lang/it.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", "Ordina etichette"),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/ja.rs b/src/lang/ja.rs
index ed09d6132..e5328f332 100644
--- a/src/lang/ja.rs
+++ b/src/lang/ja.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/ko.rs b/src/lang/ko.rs
index d48347023..05f003f63 100644
--- a/src/lang/ko.rs
+++ b/src/lang/ko.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/kz.rs b/src/lang/kz.rs
index 1bcadec64..634654dc6 100644
--- a/src/lang/kz.rs
+++ b/src/lang/kz.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/lt.rs b/src/lang/lt.rs
index accdf9a39..bdc8c9e24 100644
--- a/src/lang/lt.rs
+++ b/src/lang/lt.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/nl.rs b/src/lang/nl.rs
index b1bcd1d2a..d4868b401 100644
--- a/src/lang/nl.rs
+++ b/src/lang/nl.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", "Labels sorteren"),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/pl.rs b/src/lang/pl.rs
index 1d813ef41..8aa9525ab 100644
--- a/src/lang/pl.rs
+++ b/src/lang/pl.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/pt_PT.rs b/src/lang/pt_PT.rs
index 6b32a1e48..196f1e5c3 100644
--- a/src/lang/pt_PT.rs
+++ b/src/lang/pt_PT.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/ptbr.rs b/src/lang/ptbr.rs
index c732dd2af..53c91b3c6 100644
--- a/src/lang/ptbr.rs
+++ b/src/lang/ptbr.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/ro.rs b/src/lang/ro.rs
index 4db68ee50..f3cc62202 100644
--- a/src/lang/ro.rs
+++ b/src/lang/ro.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/ru.rs b/src/lang/ru.rs
index 9dcef1a48..c44335f69 100644
--- a/src/lang/ru.rs
+++ b/src/lang/ru.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", "Сортировка меток"),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/sk.rs b/src/lang/sk.rs
index 3f8d57169..0c7e5f2d8 100644
--- a/src/lang/sk.rs
+++ b/src/lang/sk.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/sl.rs b/src/lang/sl.rs
index e3c17a659..ff0c0114d 100755
--- a/src/lang/sl.rs
+++ b/src/lang/sl.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/sq.rs b/src/lang/sq.rs
index 46db68578..261d5fa5a 100644
--- a/src/lang/sq.rs
+++ b/src/lang/sq.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/sr.rs b/src/lang/sr.rs
index 370865e0a..9ce8e4c3f 100644
--- a/src/lang/sr.rs
+++ b/src/lang/sr.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/sv.rs b/src/lang/sv.rs
index 3ec8535ef..72b3f3243 100644
--- a/src/lang/sv.rs
+++ b/src/lang/sv.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/template.rs b/src/lang/template.rs
index 7eb168fdf..82fcec792 100644
--- a/src/lang/template.rs
+++ b/src/lang/template.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/th.rs b/src/lang/th.rs
index f125384de..b17f432d0 100644
--- a/src/lang/th.rs
+++ b/src/lang/th.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/tr.rs b/src/lang/tr.rs
index b4959b158..c2467ce5d 100644
--- a/src/lang/tr.rs
+++ b/src/lang/tr.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/tw.rs b/src/lang/tw.rs
index cda76a154..c705665ae 100644
--- a/src/lang/tw.rs
+++ b/src/lang/tw.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/ua.rs b/src/lang/ua.rs
index 8d46b61ae..879dd9d94 100644
--- a/src/lang/ua.rs
+++ b/src/lang/ua.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/lang/vn.rs b/src/lang/vn.rs
index c188e2d14..52fef05d4 100644
--- a/src/lang/vn.rs
+++ b/src/lang/vn.rs
@@ -526,5 +526,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Sort tags", ""),
         ("Separate remote window", ""),
         ("separate window", ""),
+        ("Split", ""),
     ].iter().cloned().collect();
 }
diff --git a/src/ui_session_interface.rs b/src/ui_session_interface.rs
index 21b9c9d9e..704b91cf0 100644
--- a/src/ui_session_interface.rs
+++ b/src/ui_session_interface.rs
@@ -56,6 +56,7 @@ pub struct CacheFlutter {
     pub sp: Option<SwitchDisplay>,
     pub cursor_data: HashMap<u64, CursorData>,
     pub cursor_id: u64,
+    pub is_secured_direct: Option<(bool, bool)>,
 }
 
 #[derive(Clone, Default)]
@@ -1198,6 +1199,9 @@ impl<T: InvokeUiSession> Session<T> {
     #[cfg(feature = "flutter")]
     #[cfg(not(any(target_os = "android", target_os = "ios")))]
     pub fn restore_flutter_cache(&mut self) {
+        if let Some((is_secured, direct)) = self.cache_flutter.read().unwrap().is_secured_direct {
+            self.set_connection_type(is_secured, direct);
+        }
         let pi = self.cache_flutter.read().unwrap().pi.clone();
         self.handle_peer_info(pi);
         if let Some(sp) = self.cache_flutter.read().unwrap().sp.as_ref() {