diff --git a/VoidLink/Localization/Localizable.xcstrings b/VoidLink/Localization/Localizable.xcstrings
index 1ae1e730..833648f0 100644
--- a/VoidLink/Localization/Localizable.xcstrings
+++ b/VoidLink/Localization/Localizable.xcstrings
@@ -2804,6 +2804,29 @@
         }
       }
     },
+    "Online Documentation" : {
+      "extractionState" : "manual",
+      "localizations" : {
+        "zh-Hans" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "在线支持文档"
+          }
+        },
+        "zh-Hant" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "線上支援文件"
+          }
+        },
+        "zh-HK" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "線上支援文件"
+          }
+        }
+      }
+    },
     "Open widget tool in streaming by:\nSliding from %@ screen edge to open cmd tool.\nOr tap %d fingers on stream view, number of fingers required:" : {
       "extractionState" : "manual",
       "localizations" : {
@@ -2942,6 +2965,35 @@
         }
       }
     },
+    "pipStackTip" : {
+      "extractionState" : "manual",
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "- Enable auto picture-in-picture by switching on Settings -> Multitasking & Gestures -> Start PiP Automatically.\n\n- PiP can be manually started in toolbox menu.\n\n- PiP connection timeout also defined by  “Background Session” settings in “Others” section\n\n-PiP is available for iOS15+"
+          }
+        },
+        "zh-Hans" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "- App切后台时自动开启画中画， 需要打开 iOS 设置-> 多任务与手势 -> 自动开启画中画。\n\n- 画中画可在工具箱菜单中手动开启。\n\n- 画中画时长由 “其他 -> 后台会话” 设置项控制\n\n- 仅 iOS15+ 支持画中画。"
+          }
+        },
+        "zh-Hant" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "- App 切到背景時會自動啟用子母畫面，需開啟 iOS 「設定」→「多工與手勢」→「自動啟用子母畫面」。\n\n- 子母畫面也可透過工具箱選單手動啟用。\n\n- 子母畫面顯示時長由「其他」→「背景執行」設定項目控制。\n\n- 子母畫面功能自 iOS 15 起支援。"
+          }
+        },
+        "zh-HK" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "- App 切到背景時會自動啟用子母畫面，需開啟 iOS 「設定」→「多工與手勢」→「自動啟用子母畫面」。\n\n- 子母畫面也可透過工具箱選單手動啟用。\n\n- 子母畫面顯示時長由「其他」→「背景執行」設定項目控制。\n\n- 子母畫面功能自 iOS 15 起支援。"
+          }
+        }
+      }
+    },
     "Pofiles imported" : {
       "extractionState" : "manual",
       "localizations" : {
diff --git a/VoidLink/ViewControllers/SettingsViewController.m b/VoidLink/ViewControllers/SettingsViewController.m
index 462998ca..c8a48d5f 100644
--- a/VoidLink/ViewControllers/SettingsViewController.m
+++ b/VoidLink/ViewControllers/SettingsViewController.m
@@ -950,6 +950,7 @@ BOOL isCustomResolution(CGSize res) {
 -  (void)infoButtonTapped:(UIButton* )sender{
     
     NSString* tipText = @"";
+    NSString* onlineDocLink = @"";
     bool showOnlineDocAction = false;
     tipText = sender.superview.accessibilityIdentifier;
     if([sender.superview.accessibilityIdentifier isEqualToString: @"bitrateStack"]){
@@ -959,6 +960,7 @@ BOOL isCustomResolution(CGSize res) {
     if([sender.superview.accessibilityIdentifier isEqualToString: @"yuv444Stack"]){
         tipText = [LocalizationHelper localizedStringForKey:@"yuv444StackTip"];
         showOnlineDocAction = true;
+        onlineDocLink = @"https://voidlink.yuque.com/org-wiki-voidlink-znirha/fa3tgr/wr4ywd4vatrb3y07?singleDoc#";
     }
     if([sender.superview.accessibilityIdentifier isEqualToString: @"touchModeStack"]){
         tipText = [LocalizationHelper localizedStringForKey:@"touchModeStackTip"];
@@ -972,11 +974,15 @@ BOOL isCustomResolution(CGSize res) {
         tipText = [LocalizationHelper localizedStringForKey:@"pointerVelocityFactorStackTip"];
         showOnlineDocAction = true;
     }
-
     if([sender.superview.accessibilityIdentifier isEqualToString: @"hdrStack"]){
         tipText = [LocalizationHelper localizedStringForKey:@"hdrStackTip"];
         showOnlineDocAction = false;
     }
+    
+    if([sender.superview.accessibilityIdentifier isEqualToString: @"pipStack"]){
+        tipText = [LocalizationHelper localizedStringForKey:@"pipStackTip"];
+        showOnlineDocAction = false;
+    }
 
     
     
@@ -1003,7 +1009,7 @@ BOOL isCustomResolution(CGSize res) {
     UIAlertAction *readInstruction = [UIAlertAction actionWithTitle:[LocalizationHelper localizedStringForKey:@"Online Documentation"]
                                                            style:UIAlertActionStyleDefault
                                                          handler:^(UIAlertAction *action){
-        NSURL *url = [NSURL URLWithString:@"https://b23.tv/J8qEXOr"];
+        NSURL *url = [NSURL URLWithString:onlineDocLink];
         if ([[UIApplication sharedApplication] canOpenURL:url]) {
             [[UIApplication sharedApplication] openURL:url options:@{} completionHandler:nil];
         }
@@ -1868,7 +1874,6 @@ BOOL isCustomResolution(CGSize res) {
 }
 
 - (bool)hdrSupported{
-    return false;
     return !VTIsHardwareDecodeSupported(kCMVideoCodecType_HEVC) || !(AVPlayer.availableHDRModes & AVPlayerHDRModeHDR10);
 }