diff --git a/Presence.Desktop/ViewModels/GroupViewModel.cs b/Presence.Desktop/ViewModels/GroupViewModel.cs
index 963e21e..6b9d091 100644
--- a/Presence.Desktop/ViewModels/GroupViewModel.cs
+++ b/Presence.Desktop/ViewModels/GroupViewModel.cs
@@ -21,110 +21,153 @@ namespace Presence.Desktop.ViewModels
 
         public GroupPresenter? SelectedGroupItem { 
             get => _selectedGroupItem; 
-            set => this.RaiseAndSetIfChanged(ref _selectedGroupItem, value); }
+            set => this.RaiseAndSetIfChanged(ref _selectedGroupItem, value);
+        }
 
         private GroupPresenter? _selectedGroupItem;
 
-        public ReactiveCommand<Unit, Unit> DeleteUsersByGroupCommand { get; }
-
-        public ReactiveCommand<Unit, Unit> ImportStudentsCommand { get; }
-
         public ObservableCollection<UserPresenter> Users { get => _users;}
         public ObservableCollection<UserPresenter> _users;
 
+        private IGroupUseCase _groupUseCase;
+        private IUserUseCase _userUseCase;
+
+        private ObservableCollection<string> _secondComboBoxItems = new ObservableCollection<string> { "no sort", "name sort", "name sort rev" };
+        public ObservableCollection<string> SecondComboBoxItems => _secondComboBoxItems;
+        private string? _selectedSecondItem;
+
+
+        public ReactiveCommand<Unit, Unit> DeleteUsersByGroupCommand { get; }
+        public ReactiveCommand<Unit, Unit> ImportStudentsCommand { get; }
+
+
+        public string? SelectedSecondItem
+        {
+            get => _selectedSecondItem;
+            set => this.RaiseAndSetIfChanged(ref _selectedSecondItem, value);
+        }
+
+        private UserPresenter? _selectedUser;
+        public UserPresenter? SelectedUser
+        {
+            get => _selectedUser;
+            set => this.RaiseAndSetIfChanged(ref _selectedUser, value);
+        }
+
+        private string? _newFIO;
+        public string? NewFIO
+        {
+            get => _newFIO;
+            set => this.RaiseAndSetIfChanged(ref _newFIO, value);
+        }
+
+        public ReactiveCommand<UserPresenter, Unit> DeleteUserCommand { get; }
+        public ReactiveCommand<UserPresenter, Unit> UpdateUserFIOCommand { get; }
+
         public GroupViewModel(IGroupUseCase groupUseCase, IUserUseCase userUseCase)
         {
-            foreach (var item in groupUseCase.GetAllGroupsWithUsers())
-            {
-                GroupPresenter groupPresenter = new GroupPresenter
+            _groupUseCase = groupUseCase;
+            _userUseCase = userUseCase;
+
+            _groups = new ObservableCollection<GroupPresenter>(_groupPresentersDataSource);
+            _users = new ObservableCollection<UserPresenter>();
+
+            RefreshGroups();
+
+            this.WhenAnyValue(vm => vm.SelectedGroupItem)
+                .Subscribe(_ =>
                 {
-                    Id = item.ID,
-                    Name = item.Name,
-                    users = item.Users?.Select(user => new UserPresenter
+                    RefreshGroups();
+                    SetUsers();
+                });
+
+            this.WhenAnyValue(vm => vm.SelectedSecondItem)
+                .Subscribe(_ => SetUsers());
+
+            SelectedSecondItem = _secondComboBoxItems.First();
+
+            DeleteUsersByGroupCommand = ReactiveCommand.Create(() => DeleteUsersByGroupID());
+            ImportStudentsCommand = ReactiveCommand.CreateFromTask(async () => await ImportStudents());
+
+            DeleteUserCommand = ReactiveCommand.Create<UserPresenter>(DeleteUser);
+            UpdateUserFIOCommand = ReactiveCommand.Create<UserPresenter>(UpdateUserFIO);
+        }
+
+        private void RefreshGroups()
+        {
+            _groupPresentersDataSource.Clear();
+
+            foreach (var group in _groupUseCase.GetAllGroupsWithUsers())
+            {
+                var groupPresenter = new GroupPresenter
+                {
+                    Id = group.ID,
+                    Name = group.Name,
+                    users = group.Users?.Select(user => new UserPresenter
                     {
                         Name = user.FIO,
                         Guid = user.Guid,
-                        Group = new GroupPresenter { Id = item.ID, Name = item.Name }
-                    }
-                    ).ToList()
+                        Group = new GroupPresenter { Id = group.ID, Name = group.Name }
+                    }).ToList()
                 };
                 _groupPresentersDataSource.Add(groupPresenter);
             }
+
             _groups = new ObservableCollection<GroupPresenter>(_groupPresentersDataSource);
-            
-            _users = new ObservableCollection<UserPresenter>();
-
-            DeleteUsersByGroupCommand = ReactiveCommand.Create(() => DeleteUsersByGroupID(userUseCase));
-
-            this.WhenAnyValue(vm => vm.SelectedGroupItem)
-                .Subscribe(_ => SetUsers());
-
-            ImportStudentsCommand = ReactiveCommand.CreateFromTask(async () =>
-            {
-                var openFileDialog = new OpenFileDialog
-                {
-                    Filters = new List<FileDialogFilter>
-                    {
-                        new FileDialogFilter { Name = "CSV Files", Extensions = { "csv" } }
-                    },
-                    AllowMultiple = false
-                };
-
-                var result = await openFileDialog.ShowAsync(new Window());
-                if (result?.Length > 0) {
-                    var filePath = result[0];
-                    ImportStudents(filePath, userUseCase);
-                }
-            });
         }
 
-        private void ImportStudents(string filePath, IUserUseCase userUseCase)
+        private async System.Threading.Tasks.Task ImportStudents()
         {
-            if (SelectedGroupItem == null || SelectedGroupItem.Id == null)
+            if (SelectedGroupItem == null || SelectedGroupItem.Id == null) return;
+
+            var openFileDialog = new OpenFileDialog
             {
-                return;
-            }
-            var lines = File.ReadAllLines(filePath);
+                Filters = new List<FileDialogFilter>
+                {
+                    new FileDialogFilter { Name = "CSV Files", Extensions = { "csv" } }
+                },
+                AllowMultiple = false
+            };
 
-            foreach (var line in lines.Skip(1))
+            var result = await openFileDialog.ShowAsync(new Window());
+            if (result?.Length > 0)
             {
-                var columns = line.Split(',');
-                if (columns.Length < 1) continue;
+                var filePath = result[0];
+                var lines = File.ReadAllLines(filePath);
 
-                var fio = columns[0];
-
-                var newUser = new User
+                foreach (var line in lines.Skip(1))
                 {
-                    FIO = fio,
-                    Group = new Group
-                    {
-                        Name = SelectedGroupItem.Name,
-                        ID = SelectedGroupItem.Id
-                    }
-                };
+                    var columns = line.Split(',');
+                    if (columns.Length < 1) continue;
 
-                var result = userUseCase.CreateUser(newUser);
-
-                if (result)
-                {
-                    var userPresenter = new UserPresenter
+                    var fio = columns[0];
+                    var newUser = new User
                     {
-                        Name = fio,
-                        Guid = Guid.NewGuid(),
-                        Group = SelectedGroupItem
+                        FIO = fio,
+                        Group = new Group
+                        {
+                            Name = SelectedGroupItem.Name,
+                            ID = SelectedGroupItem.Id
+                        }
                     };
-                    _users.Add(userPresenter);
+
+                    var isCreated = _userUseCase.CreateUser(newUser);
+                    if (isCreated)
+                    {
+                        RefreshGroups();
+                        SetUsers();
+                    }
                 }
             }
         }
 
-        private void DeleteUsersByGroupID(IUserUseCase userUseCase) {
+        private void DeleteUsersByGroupID() {
 
             if (SelectedGroupItem == null)
                 return;
 
             var groupID = SelectedGroupItem.Id;
-            bool res = userUseCase.RemoveUsersByGroupID(groupID);
+            bool res = _userUseCase.RemoveUsersByGroupID(groupID);
 
             if (res) {
                 Users.Clear();
@@ -133,12 +176,58 @@ namespace Presence.Desktop.ViewModels
 
         private void SetUsers()
         {
-            if(SelectedGroupItem == null) return;
-            if (SelectedGroupItem.users == null) return;
+            if (SelectedGroupItem == null) return;
+
             Users.Clear();
-            foreach (var item in SelectedGroupItem.users)
+
+            var group = _groups.FirstOrDefault(it => it.Id == SelectedGroupItem.Id);
+            if (group?.users == null) return;
+
+            var sortedUsers = SelectedSecondItem switch
             {
-                Users.Add(item);
+                "name sort" => group.users.OrderBy(user => user.Name),
+                "name sort rev" => group.users.OrderByDescending(user => user.Name),
+                _ => group.users
+            };
+
+            foreach (var user in sortedUsers)
+            {
+                Users.Add(user);
+            }
+        }
+
+        private void DeleteUser(UserPresenter user) {
+
+            if (user == null) return;
+
+            var isDeleted = _userUseCase.RemoveUserByGuid(user.Guid);
+            if (isDeleted) {
+                Users.Remove(user);
+            }
+        }
+
+        private void UpdateUserFIO(UserPresenter user)
+        {
+            if (user == null || string.IsNullOrWhiteSpace(NewFIO)) return;
+
+            user.Name = NewFIO;
+            var updatedUser = new User
+            {
+                Guid = user.Guid,
+                FIO = NewFIO,
+                Group = new Group
+                {
+                    ID = SelectedGroupItem.Id,
+                    Name = SelectedGroupItem.Name
+                }
+            };
+            var isUpdated = _userUseCase.UpdateUser(updatedUser);
+
+            if (isUpdated != null)
+            {
+                NewFIO = string.Empty;
+                RefreshGroups();
+                SetUsers();
             }
         }
 
diff --git a/Presence.Desktop/Views/GroupView.axaml b/Presence.Desktop/Views/GroupView.axaml
index 26c48b3..7329c2d 100644
--- a/Presence.Desktop/Views/GroupView.axaml
+++ b/Presence.Desktop/Views/GroupView.axaml
@@ -27,12 +27,19 @@
 					</DataTemplate>
 				</ComboBox.ItemTemplate>
 			</ComboBox>
+            <ComboBox ItemsSource="{Binding SecondComboBoxItems}" SelectedValue="{Binding SelectedSecondItem}">
+                <ComboBox.ItemTemplate>
+                    <DataTemplate>
+                        <TextBlock Text="{Binding}"/>
+                    </DataTemplate>
+                </ComboBox.ItemTemplate>
+            </ComboBox>
             <Button Content="Delete Users"
                     Command="{Binding DeleteUsersByGroupCommand}"/>
             <Button Content="Import Students" Command="{Binding ImportStudentsCommand}"/>
 		</StackPanel>
 		<Border>
-			<ListBox Background="Black" ItemsSource="{Binding Users}">
+			<ListBox Background="Black" ItemsSource="{Binding Users}" SelectedItem="{Binding SelectedUser}">
 				<ListBox.ItemTemplate>
 					<DataTemplate>
 						<StackPanel Orientation="Horizontal">
@@ -40,6 +47,21 @@
 						</StackPanel>
 					</DataTemplate>
 				</ListBox.ItemTemplate>
+				<ListBox.ContextMenu>
+					<ContextMenu>
+						<MenuItem Header="Delete User"
+								  Command="{Binding DeleteUserCommand}"
+								  CommandParameter="{Binding SelectedUser}" />
+						<MenuItem Header="Update FIO">
+							<StackPanel>
+								<TextBox Text="{Binding NewFIO, Mode=TwoWay}" Width="150" />
+								<Button Content="Update"
+										Command="{Binding UpdateUserFIOCommand}"
+										CommandParameter="{Binding SelectedUser}" />
+							</StackPanel>
+						</MenuItem>
+					</ContextMenu>
+				</ListBox.ContextMenu>
 			</ListBox>
 		</Border>
 	</DockPanel>
diff --git a/students.csv b/students.csv
index dcbbd09..4f8455a 100644
--- a/students.csv
+++ b/students.csv
@@ -1,3 +1,10 @@
 FIO
-Zamir Bezgeev
-Yasha Lava
\ No newline at end of file
+Алексей Смирнов
+Сергей Петров
+Анна Кузнецова
+Елена Попова
+Борис Васильев
+Владимир Сидоров
+Алина Фролова
+Георгий Крылов
+Зоя Тимофеева
\ No newline at end of file