diff --git a/ApplicationLibrary/Service/ProfileUpdateTask.swift b/ApplicationLibrary/Service/ProfileUpdateTask.swift
index ff439f0..65ce3d7 100644
--- a/ApplicationLibrary/Service/ProfileUpdateTask.swift
+++ b/ApplicationLibrary/Service/ProfileUpdateTask.swift
@@ -20,11 +20,11 @@ public enum ProfileUpdateTask {
         if updateInterval < minUpdateInterval {
             updateInterval = minUpdateInterval
         }
-        timer = Timer(fire: calculateEarliestBeginDate(profiles), interval: updateInterval, repeats: true, block: { _ in
+        timer = Timer(fire: calculateEarliestBeginDate(profiles), interval: updateInterval, repeats: true) { _ in
             Task {
                 await getAndupdateProfiles()
             }
-        })
+        }
     }
 
     static func calculateEarliestBeginDate(_ profiles: [Profile]) -> Date {
diff --git a/ApplicationLibrary/Views/Abstract/DeleteButton.swift b/ApplicationLibrary/Views/Abstract/DeleteButton.swift
new file mode 100644
index 0000000..746f8c1
--- /dev/null
+++ b/ApplicationLibrary/Views/Abstract/DeleteButton.swift
@@ -0,0 +1,46 @@
+import Foundation
+import SwiftUI
+
+public struct DeleteButton<Label>: View where Label: View {
+    private let action: () async -> Void
+    private let label: Label
+
+    @State private var performDelete = false
+    @State private var timer: Timer?
+    @State private var isLoading = false
+
+    public init(action: @escaping () async -> Void, @ViewBuilder label: () -> Label) {
+        self.action = action
+        self.label = label()
+    }
+
+    public var body: some View {
+        Button(role: .destructive) {
+            isLoading = true
+            if let timer {
+                timer.invalidate()
+            }
+            if !performDelete {
+                performDelete = true
+                timer = Timer.scheduledTimer(withTimeInterval: 3, repeats: false) { _ in
+                    timer = nil
+                    performDelete = false
+                }
+                isLoading = true
+            } else {
+                Task {
+                    await action()
+                    isLoading = false
+                    performDelete = false
+                }
+            }
+        } label: {
+            if !performDelete {
+                label
+            } else {
+                label.foregroundStyle(.red)
+            }
+        }
+        .disabled(isLoading)
+    }
+}
diff --git a/ApplicationLibrary/Views/Profile/EditProfileContentView.swift b/ApplicationLibrary/Views/Profile/EditProfileContentView.swift
index 1ae3c0b..8e16499 100644
--- a/ApplicationLibrary/Views/Profile/EditProfileContentView.swift
+++ b/ApplicationLibrary/Views/Profile/EditProfileContentView.swift
@@ -22,7 +22,7 @@
 
         @State private var isLoading = true
         @State private var profile: Profile!
-        @State private var profileContent: String = ""
+        @State private var profileContent = ""
         @State private var isChanged = false
         @State private var alert: Alert?
 
@@ -70,9 +70,15 @@
                                     await saveContent()
                                 }
                             } label: {
-                                Image("save", label: Text("Save"))
+                                Label("Save", image: "save")
                             }
                             .disabled(!isChanged)
+                        } else {
+                            Button {
+                                NSPasteboard.general.setString(profileContent, forType: .fileContents)
+                            } label: {
+                                Label("Copy", systemImage: "clipboard.fill")
+                            }
                         }
                     }
                 }
@@ -85,6 +91,10 @@
                                     await saveContent()
                                 }
                             }.disabled(!isChanged)
+                        } else {
+                            Button("Copy") {
+                                UIPasteboard.general.string = profileContent
+                            }
                         }
                     }
                 }
diff --git a/ApplicationLibrary/Views/Profile/ProfileView.swift b/ApplicationLibrary/Views/Profile/ProfileView.swift
index ab9a38f..bc73b3f 100644
--- a/ApplicationLibrary/Views/Profile/ProfileView.swift
+++ b/ApplicationLibrary/Views/Profile/ProfileView.swift
@@ -324,7 +324,6 @@ public struct ProfileView: View {
                             }
                         } label: {
                             Label("Delete", systemImage: "trash.fill")
-                                .foregroundColor(.red)
                         }
                     }
                 #else
diff --git a/ApplicationLibrary/Views/Setting/CoreView.swift b/ApplicationLibrary/Views/Setting/CoreView.swift
index d355d71..e731d28 100644
--- a/ApplicationLibrary/Views/Setting/CoreView.swift
+++ b/ApplicationLibrary/Views/Setting/CoreView.swift
@@ -31,7 +31,7 @@ public struct CoreView: View {
                                 Label("Open", systemImage: "macwindow.and.cursorarrow")
                             }
                         #endif
-                        FormButton {
+                        FormButton(role: .destructive) {
                             Task {
                                 await destroyWorkingDirectory()
                             }
diff --git a/ApplicationLibrary/Views/Setting/MacAppView.swift b/ApplicationLibrary/Views/Setting/MacAppView.swift
index c756464..24b0619 100644
--- a/ApplicationLibrary/Views/Setting/MacAppView.swift
+++ b/ApplicationLibrary/Views/Setting/MacAppView.swift
@@ -64,7 +64,7 @@
                                 } label: {
                                     Label("Update", systemImage: "arrow.down.doc.fill")
                                 }
-                                FormButton {
+                                FormButton(role: .destructive) {
                                     Task {
                                         await uninstallSystemExtension()
                                     }
diff --git a/ApplicationLibrary/Views/Setting/PacketTunnelView.swift b/ApplicationLibrary/Views/Setting/PacketTunnelView.swift
index 5ee52c3..57ff568 100644
--- a/ApplicationLibrary/Views/Setting/PacketTunnelView.swift
+++ b/ApplicationLibrary/Views/Setting/PacketTunnelView.swift
@@ -9,7 +9,6 @@ struct PacketTunnelView: View {
     @State private var isLoading = true
 
     @State private var ignoreMemoryLimit = false
-    @State private var ignoreDeviceSleep = false
 
     @State private var includeAllNetworks = false
     @State private var excludeAPNs = false
@@ -39,17 +38,6 @@ struct PacketTunnelView: View {
                         Text("Do not enforce memory limits on sing-box. Will cause OOM on non-jailbroken iOS and tvOS devices.")
                     }
 
-                    FormSection {
-                        Toggle("Ignore Device Sleep", isOn: $ignoreDeviceSleep)
-                            .onChangeCompat(of: ignoreDeviceSleep) { newValue in
-                                Task {
-                                    await SharedPreferences.ignoreDeviceSleep.set(newValue)
-                                }
-                            }
-                    } footer: {
-                        Text("Ignore system `sleep()` and `wake()` events. May cause increased power usage, only enable if you encounter unexpected `rejected ... while device paused` errors.")
-                    }
-
                     #if !os(tvOS)
 
                         FormSection {
@@ -152,7 +140,6 @@ struct PacketTunnelView: View {
 
     private func loadSettings() async {
         ignoreMemoryLimit = await SharedPreferences.ignoreMemoryLimit.get()
-        ignoreDeviceSleep = await SharedPreferences.ignoreDeviceSleep.get()
         #if !os(tvOS)
             includeAllNetworks = await SharedPreferences.includeAllNetworks.get()
             excludeAPNs = await SharedPreferences.excludeAPNs.get()
diff --git a/ApplicationLibrary/Views/Setting/SettingView.swift b/ApplicationLibrary/Views/Setting/SettingView.swift
index 0ec3d50..5e4788e 100644
--- a/ApplicationLibrary/Views/Setting/SettingView.swift
+++ b/ApplicationLibrary/Views/Setting/SettingView.swift
@@ -86,7 +86,7 @@ public struct SettingView: View {
         }
     }
 
-    @State private var isLoading = false
+    @State private var isLoading = true
     @State private var taiwanFlagAvailable = false
 
     public init() {}
diff --git a/Library/Database/SharedPreferences.swift b/Library/Database/SharedPreferences.swift
index c1f8955..5d2634f 100644
--- a/Library/Database/SharedPreferences.swift
+++ b/Library/Database/SharedPreferences.swift
@@ -12,7 +12,6 @@ public enum SharedPreferences {
     public static let alwaysOn = Preference<Bool>("always_on", defaultValue: false)
 
     public static let ignoreMemoryLimit = Preference<Bool>("ignore_memory_limit", defaultValue: ignoreMemoryLimitByDefault)
-    public static let ignoreDeviceSleep = Preference<Bool>("ignore_device_sleep", defaultValue: false)
 
     #if os(iOS)
         public static let excludeLocalNetworksByDefault = true
@@ -31,7 +30,6 @@ public enum SharedPreferences {
 
     public static func resetPacketTunnel() async {
         await ignoreMemoryLimit.set(nil)
-        await ignoreDeviceSleep.set(nil)
         #if !os(tvOS)
             await includeAllNetworks.set(nil)
             await excludeAPNs.set(nil)
diff --git a/Library/Network/ExtensionProvider.swift b/Library/Network/ExtensionProvider.swift
index d0a21f5..89dbaab 100644
--- a/Library/Network/ExtensionProvider.swift
+++ b/Library/Network/ExtensionProvider.swift
@@ -6,7 +6,6 @@ open class ExtensionProvider: NEPacketTunnelProvider {
     public var username: String? = nil
     private var commandServer: LibboxCommandServer!
     private var boxService: LibboxBoxService!
-    private var ignoreDeviceSleep = false
     private var systemProxyAvailable = false
     private var systemProxyEnabled = false
     private var platformInterface: ExtensionPlatformInterface!
@@ -36,7 +35,6 @@ open class ExtensionProvider: NEPacketTunnelProvider {
         }
 
         await LibboxSetMemoryLimit(!SharedPreferences.ignoreMemoryLimit.get())
-        ignoreDeviceSleep = await SharedPreferences.ignoreDeviceSleep.get()
 
         if platformInterface == nil {
             platformInterface = ExtensionPlatformInterface(self)
@@ -161,18 +159,12 @@ open class ExtensionProvider: NEPacketTunnelProvider {
     }
 
     override open func sleep() async {
-        if ignoreDeviceSleep {
-            return
-        }
         if let boxService {
-            boxService.sleep()
+            boxService.pause()
         }
     }
 
     override open func wake() {
-        if ignoreDeviceSleep {
-            return
-        }
         if let boxService {
             boxService.wake()
         }
diff --git a/sing-box.xcodeproj/project.pbxproj b/sing-box.xcodeproj/project.pbxproj
index 6112960..9d00a39 100644
--- a/sing-box.xcodeproj/project.pbxproj
+++ b/sing-box.xcodeproj/project.pbxproj
@@ -98,6 +98,7 @@
 		3AC729F02A75D9D000FE8EC1 /* Profile+Transferable.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3AC729EF2A75D9D000FE8EC1 /* Profile+Transferable.swift */; };
 		3AC729F22A76088E00FE8EC1 /* ShareButton.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3AC729F12A76088E00FE8EC1 /* ShareButton.swift */; };
 		3AC8CF9B2A736C750002AF3C /* ImportProfileView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3AC8CF9A2A736C750002AF3C /* ImportProfileView.swift */; };
+		3ACA8B332B7E037800B7238F /* DeleteButton.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3ACA8B322B7E037800B7238F /* DeleteButton.swift */; };
 		3ACE6DE32ACADF55009D9A8A /* Binding+Setter.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3ACE6DE22ACADF55009D9A8A /* Binding+Setter.swift */; };
 		3AD0953D2A70EB310052764E /* Profile+Share.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3AD0953C2A70EB310052764E /* Profile+Share.swift */; };
 		3ADBB4252A7389640041D44F /* ProfileServer.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3ADBB4242A7389640041D44F /* ProfileServer.swift */; };
@@ -510,6 +511,7 @@
 		3AC729EF2A75D9D000FE8EC1 /* Profile+Transferable.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Profile+Transferable.swift"; sourceTree = "<group>"; };
 		3AC729F12A76088E00FE8EC1 /* ShareButton.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ShareButton.swift; sourceTree = "<group>"; };
 		3AC8CF9A2A736C750002AF3C /* ImportProfileView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ImportProfileView.swift; sourceTree = "<group>"; };
+		3ACA8B322B7E037800B7238F /* DeleteButton.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DeleteButton.swift; sourceTree = "<group>"; };
 		3ACE6DE22ACADF55009D9A8A /* Binding+Setter.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Binding+Setter.swift"; sourceTree = "<group>"; };
 		3AD0953C2A70EB310052764E /* Profile+Share.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Profile+Share.swift"; sourceTree = "<group>"; };
 		3ADBB4242A7389640041D44F /* ProfileServer.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ProfileServer.swift; sourceTree = "<group>"; };
@@ -1029,6 +1031,7 @@
 				3AC729F12A76088E00FE8EC1 /* ShareButton.swift */,
 				3ACE6DE22ACADF55009D9A8A /* Binding+Setter.swift */,
 				3A3AB2A82B70C5F1001815AE /* RequestReviewButton.swift */,
+				3ACA8B322B7E037800B7238F /* DeleteButton.swift */,
 			);
 			path = Abstract;
 			sourceTree = "<group>";
@@ -1510,6 +1513,7 @@
 				3A99B42E2A752ABB0010D4B0 /* NavigationDestinationCompat.swift in Sources */,
 				3AC729F22A76088E00FE8EC1 /* ShareButton.swift in Sources */,
 				3A0C6D3C2A79D46500A4DF2B /* OverviewView.swift in Sources */,
+				3ACA8B332B7E037800B7238F /* DeleteButton.swift in Sources */,
 				3ACE6DE32ACADF55009D9A8A /* Binding+Setter.swift in Sources */,
 				3A4EAD262A4FEB65005435B3 /* ExtensionStatusView.swift in Sources */,
 				3A4EAD252A4FEB65005435B3 /* StartStopButton.swift in Sources */,
@@ -2543,7 +2547,7 @@
 					"@executable_path/../../../../Frameworks",
 				);
 				MACOSX_DEPLOYMENT_TARGET = 13.0;
-				MARKETING_VERSION = 1.9.0-alpha.1;
+				MARKETING_VERSION = "1.9.0-alpha.8";
 				PRODUCT_BUNDLE_IDENTIFIER = io.nekohasekai.sfa.system;
 				PRODUCT_NAME = "$(inherited)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
@@ -2579,7 +2583,7 @@
 					"@executable_path/../../../../Frameworks",
 				);
 				MACOSX_DEPLOYMENT_TARGET = 13.0;
-				MARKETING_VERSION = 1.9.0-alpha.1;
+				MARKETING_VERSION = "1.9.0-alpha.8";
 				PRODUCT_BUNDLE_IDENTIFIER = io.nekohasekai.sfa.system;
 				PRODUCT_NAME = "$(inherited)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
@@ -2619,7 +2623,7 @@
 					"@executable_path/../Frameworks",
 				);
 				MACOSX_DEPLOYMENT_TARGET = 13.0;
-				MARKETING_VERSION = 1.9.0-alpha.1;
+				MARKETING_VERSION = "1.9.0-alpha.8";
 				PRODUCT_BUNDLE_IDENTIFIER = io.nekohasekai.sfa.independent;
 				PRODUCT_NAME = SFM;
 				PROVISIONING_PROFILE_SPECIFIER = "";
@@ -2658,7 +2662,7 @@
 					"@executable_path/../Frameworks",
 				);
 				MACOSX_DEPLOYMENT_TARGET = 13.0;
-				MARKETING_VERSION = 1.9.0-alpha.1;
+				MARKETING_VERSION = "1.9.0-alpha.8";
 				PRODUCT_BUNDLE_IDENTIFIER = io.nekohasekai.sfa.independent;
 				PRODUCT_NAME = SFM;
 				PROVISIONING_PROFILE_SPECIFIER = "";