diff --git a/Wino.Core.Domain/Interfaces/IPreferencesService.cs b/Wino.Core.Domain/Interfaces/IPreferencesService.cs
index 7134e44d..b82e00e4 100644
--- a/Wino.Core.Domain/Interfaces/IPreferencesService.cs
+++ b/Wino.Core.Domain/Interfaces/IPreferencesService.cs
@@ -132,6 +132,11 @@ public interface IPreferencesService : INotifyPropertyChanged
     /// </summary>
     bool IsThreadingEnabled { get; set; }
 
+    /// <summary>
+    /// Setting: Whether the newest message in a conversation should appear first.
+    /// </summary>
+    bool IsNewestThreadMailFirst { get; set; }
+
     /// <summary>
     /// Setting: Show sender pictures in mail list.
     /// </summary>
diff --git a/Wino.Core.Domain/Translations/en_US/resources.json b/Wino.Core.Domain/Translations/en_US/resources.json
index 418a6da1..78fc4b1f 100644
--- a/Wino.Core.Domain/Translations/en_US/resources.json
+++ b/Wino.Core.Domain/Translations/en_US/resources.json
@@ -1074,6 +1074,12 @@
     "SettingsTaskbarBadge_Title": "Taskbar Badge",
     "SettingsThreads_Description": "Organize messages into conversation threads.",
     "SettingsThreads_Title": "Conversation Threading",
+    "SettingsThreads_Enabled_Description": "Group related messages into a single conversation.",
+    "SettingsThreads_Enabled_Title": "Enable conversation threading",
+    "SettingsThreadOrder_Description": "Choose how items are ordered inside a conversation thread.",
+    "SettingsThreadOrder_Title": "Thread item sorting",
+    "SettingsThreadOrder_LastItemFirst": "Last item first",
+    "SettingsThreadOrder_FirstItemFirst": "First item first",
     "SettingsUnlinkAccounts_Description": "Remove the link between accounts. his will not delete your accounts.",
     "SettingsUnlinkAccounts_Title": "Unlink Accounts",
     "SettingsMailRendering_ActionLabels_Title": "Action labels",
diff --git a/Wino.Mail.ViewModels/Collections/WinoMailCollection.cs b/Wino.Mail.ViewModels/Collections/WinoMailCollection.cs
index 4fa1391b..df2410ad 100644
--- a/Wino.Mail.ViewModels/Collections/WinoMailCollection.cs
+++ b/Wino.Mail.ViewModels/Collections/WinoMailCollection.cs
@@ -39,6 +39,7 @@ public class WinoMailCollection : ObservableRecipient, IRecipient<SelectedItemsC
 
     public event EventHandler<MailItemViewModel> MailItemRemoved;
     public event EventHandler ItemSelectionChanged;
+    public Func<string, ThreadMailItemViewModel> ThreadItemFactory { get; set; } = static threadId => new ThreadMailItemViewModel(threadId, true);
 
     private ListItemComparer listComparer = new();
 
@@ -457,7 +458,7 @@ public class WinoMailCollection : ObservableRecipient, IRecipient<SelectedItemsC
 
     private async Task CreateNewThreadAsync(ObservableGroup<object, IMailListItem> group, MailItemViewModel item, MailCopy addedItem)
     {
-        var threadViewModel = new ThreadMailItemViewModel(item.MailCopy.ThreadId);
+        var threadViewModel = ThreadItemFactory(item.MailCopy.ThreadId);
 
         await ExecuteUIThread(() =>
         {
@@ -710,7 +711,7 @@ public class WinoMailCollection : ObservableRecipient, IRecipient<SelectedItemsC
                 if (batchThreadLookup.TryGetValue(item.MailCopy.ThreadId, out var threadableItems) && threadableItems.Count > 1)
                 {
                     // Create a new thread with all matching items - defer UI operations
-                    var threadViewModel = new ThreadMailItemViewModel(item.MailCopy.ThreadId);
+                    var threadViewModel = ThreadItemFactory(item.MailCopy.ThreadId);
 
                     // Add emails without UI thread for now
                     foreach (var threadItem in threadableItems)
diff --git a/Wino.Mail.ViewModels/Data/ThreadMailItemViewModel.cs b/Wino.Mail.ViewModels/Data/ThreadMailItemViewModel.cs
index 7508058a..4af29f66 100644
--- a/Wino.Mail.ViewModels/Data/ThreadMailItemViewModel.cs
+++ b/Wino.Mail.ViewModels/Data/ThreadMailItemViewModel.cs
@@ -17,8 +17,9 @@ namespace Wino.Mail.ViewModels.Data;
 public partial class ThreadMailItemViewModel : ObservableRecipient, IMailListItem, IMailItemDisplayInformation
 {
     private readonly string _threadId;
+    private readonly bool _isNewestEmailFirst;
     private readonly HashSet<Guid> _uniqueIdSet = [];
-    private MailItemViewModel _cachedLatestMailViewModel;
+    private MailItemViewModel _cachedNewestMailViewModel;
     private int _suspendChildPropertyNotificationsCount;
 
     [ObservableProperty]
@@ -53,27 +54,27 @@ public partial class ThreadMailItemViewModel : ObservableRecipient, IMailListIte
     /// <summary>
     /// Gets the latest email's subject for display
     /// </summary>
-    public string Subject => latestMailViewModel?.MailCopy?.Subject;
+    public string Subject => newestMailViewModel?.MailCopy?.Subject;
 
     /// <summary>
     /// Gets the latest email's sender name for display
     /// </summary>
-    public string FromName => latestMailViewModel?.MailCopy?.FromName ?? Translator.UnknownSender;
+    public string FromName => newestMailViewModel?.MailCopy?.FromName ?? Translator.UnknownSender;
 
     /// <summary>
     /// Gets the latest email's creation date for sorting
     /// </summary>
-    public DateTime CreationDate => latestMailViewModel?.MailCopy?.CreationDate ?? DateTime.MinValue;
+    public DateTime CreationDate => newestMailViewModel?.MailCopy?.CreationDate ?? DateTime.MinValue;
 
     /// <summary>
     /// Gets the latest email's sender address for display
     /// </summary>
-    public string FromAddress => latestMailViewModel?.FromAddress ?? string.Empty;
+    public string FromAddress => newestMailViewModel?.FromAddress ?? string.Empty;
 
     /// <summary>
     /// Gets the preview text from the latest email
     /// </summary>
-    public string PreviewText => latestMailViewModel?.PreviewText ?? string.Empty;
+    public string PreviewText => newestMailViewModel?.PreviewText ?? string.Empty;
 
     /// <summary>
     /// Gets whether any email in this thread has attachments
@@ -93,18 +94,18 @@ public partial class ThreadMailItemViewModel : ObservableRecipient, IMailListIte
     /// <summary>
     /// Gets whether the latest email is focused
     /// </summary>
-    public bool IsFocused => latestMailViewModel?.IsFocused ?? false;
+    public bool IsFocused => newestMailViewModel?.IsFocused ?? false;
 
     /// <summary>
     /// Gets whether all emails in this thread are read
     /// </summary>
     public bool IsRead => ThreadEmails.All(e => e.IsRead);
 
-    public bool HasReadReceiptTracking => latestMailViewModel?.HasReadReceiptTracking ?? false;
+    public bool HasReadReceiptTracking => newestMailViewModel?.HasReadReceiptTracking ?? false;
 
-    public bool IsReadReceiptAcknowledged => latestMailViewModel?.IsReadReceiptAcknowledged ?? false;
+    public bool IsReadReceiptAcknowledged => newestMailViewModel?.IsReadReceiptAcknowledged ?? false;
 
-    public string ReadReceiptDisplayText => latestMailViewModel?.ReadReceiptDisplayText ?? string.Empty;
+    public string ReadReceiptDisplayText => newestMailViewModel?.ReadReceiptDisplayText ?? string.Empty;
 
     /// <summary>
     /// Gets whether any email in this thread is a draft
@@ -114,58 +115,58 @@ public partial class ThreadMailItemViewModel : ObservableRecipient, IMailListIte
     /// <summary>
     /// Gets the draft ID from the latest email if it's a draft
     /// </summary>
-    public string DraftId => latestMailViewModel?.DraftId ?? string.Empty;
+    public string DraftId => newestMailViewModel?.DraftId ?? string.Empty;
 
     /// <summary>
     /// Gets the ID from the latest email
     /// </summary>
-    public string Id => latestMailViewModel?.Id ?? string.Empty;
+    public string Id => newestMailViewModel?.Id ?? string.Empty;
 
     /// <summary>
     /// Gets the importance of the latest email
     /// </summary>
-    public MailImportance Importance => latestMailViewModel?.Importance ?? MailImportance.Normal;
+    public MailImportance Importance => newestMailViewModel?.Importance ?? MailImportance.Normal;
 
     /// <summary>
     /// Gets the thread ID from the latest email
     /// </summary>
-    public string ThreadId => latestMailViewModel?.ThreadId ?? _threadId;
+    public string ThreadId => newestMailViewModel?.ThreadId ?? _threadId;
 
     /// <summary>
     /// Gets the message ID from the latest email
     /// </summary>
-    public string MessageId => latestMailViewModel?.MessageId ?? string.Empty;
+    public string MessageId => newestMailViewModel?.MessageId ?? string.Empty;
 
     /// <summary>
     /// Gets the references from the latest email
     /// </summary>
-    public string References => latestMailViewModel?.References ?? string.Empty;
+    public string References => newestMailViewModel?.References ?? string.Empty;
 
     /// <summary>
     /// Gets the in-reply-to from the latest email
     /// </summary>
-    public string InReplyTo => latestMailViewModel?.InReplyTo ?? string.Empty;
+    public string InReplyTo => newestMailViewModel?.InReplyTo ?? string.Empty;
 
     /// <summary>
     /// Gets the file ID from the latest email
     /// </summary>
-    public Guid FileId => latestMailViewModel?.FileId ?? Guid.Empty;
+    public Guid FileId => newestMailViewModel?.FileId ?? Guid.Empty;
 
     /// <summary>
     /// Gets the folder ID from the latest email
     /// </summary>
-    public Guid FolderId => latestMailViewModel?.FolderId ?? Guid.Empty;
+    public Guid FolderId => newestMailViewModel?.FolderId ?? Guid.Empty;
 
     /// <summary>
     /// Gets the unique ID from the latest email
     /// </summary>
-    public Guid UniqueId => latestMailViewModel?.UniqueId ?? Guid.Empty;
+    public Guid UniqueId => newestMailViewModel?.UniqueId ?? Guid.Empty;
 
-    public Guid? ContactPictureFileId => latestMailViewModel?.MailCopy?.SenderContact?.ContactPictureFileId;
+    public Guid? ContactPictureFileId => newestMailViewModel?.MailCopy?.SenderContact?.ContactPictureFileId;
 
-    public bool ThumbnailUpdatedEvent => latestMailViewModel?.ThumbnailUpdatedEvent ?? false;
+    public bool ThumbnailUpdatedEvent => newestMailViewModel?.ThumbnailUpdatedEvent ?? false;
 
-    public AccountContact SenderContact => latestMailViewModel?.MailCopy?.SenderContact;
+    public AccountContact SenderContact => newestMailViewModel?.MailCopy?.SenderContact;
 
     /// <summary>
     /// Gets all emails in this thread (observable)
@@ -201,15 +202,16 @@ public partial class ThreadMailItemViewModel : ObservableRecipient, IMailListIte
     [NotifyPropertyChangedFor(nameof(SenderContact))]
     public partial ObservableCollection<MailItemViewModel> ThreadEmails { get; set; } = [];
 
-    private MailItemViewModel latestMailViewModel => _cachedLatestMailViewModel;
+    private MailItemViewModel newestMailViewModel => _cachedNewestMailViewModel;
 
     public DateTime SortingDate => CreationDate;
 
     public string SortingName => FromName;
 
-    public ThreadMailItemViewModel(string threadId)
+    public ThreadMailItemViewModel(string threadId, bool isNewestEmailFirst)
     {
         _threadId = threadId;
+        _isNewestEmailFirst = isNewestEmailFirst;
     }
 
     internal void SuspendChildPropertyNotifications() => _suspendChildPropertyNotificationsCount++;
@@ -224,11 +226,21 @@ public partial class ThreadMailItemViewModel : ObservableRecipient, IMailListIte
 
     private void RefreshLatestMailCache()
     {
-        _cachedLatestMailViewModel = ThreadEmails
+        _cachedNewestMailViewModel = ThreadEmails
             .OrderByDescending(static item => item.MailCopy.CreationDate)
             .FirstOrDefault();
     }
 
+    public MailItemViewModel GetDefaultSelectedThreadEmail()
+    {
+        if (ThreadEmails.Count == 0)
+        {
+            return null;
+        }
+
+        return _isNewestEmailFirst ? ThreadEmails.FirstOrDefault() : ThreadEmails.LastOrDefault();
+    }
+
     /// <summary>
     /// Adds an email to this thread
     /// </summary>
@@ -237,11 +249,15 @@ public partial class ThreadMailItemViewModel : ObservableRecipient, IMailListIte
         if (email.MailCopy.ThreadId != _threadId)
             throw new ArgumentException($"Email ThreadId '{email.MailCopy.ThreadId}' does not match expander ThreadId '{_threadId}'");
 
-        // Insert email in sorted order by CreationDate (newest first, oldest last)
+        // Insert email in sorted order by CreationDate based on the configured thread direction.
         var insertIndex = 0;
         for (int i = 0; i < ThreadEmails.Count; i++)
         {
-            if (ThreadEmails[i].MailCopy.CreationDate < email.MailCopy.CreationDate)
+            bool shouldInsertBefore = _isNewestEmailFirst
+                ? ThreadEmails[i].MailCopy.CreationDate < email.MailCopy.CreationDate
+                : ThreadEmails[i].MailCopy.CreationDate > email.MailCopy.CreationDate;
+
+            if (shouldInsertBefore)
             {
                 insertIndex = i;
                 break;
@@ -298,7 +314,7 @@ public partial class ThreadMailItemViewModel : ObservableRecipient, IMailListIte
 
         if (e.PropertyName == nameof(MailItemViewModel.ThumbnailUpdatedEvent))
         {
-            if (ReferenceEquals(updatedMailItem, latestMailViewModel))
+            if (ReferenceEquals(updatedMailItem, newestMailViewModel))
             {
                 OnPropertyChanged(nameof(ThumbnailUpdatedEvent));
             }
@@ -329,7 +345,7 @@ public partial class ThreadMailItemViewModel : ObservableRecipient, IMailListIte
         if (changedFlags == MailCopyChangeFlags.None)
             return;
 
-        var previousLatest = latestMailViewModel;
+        var previousLatest = newestMailViewModel;
 
         if (changedFlags == MailCopyChangeFlags.All ||
             (changedFlags & MailCopyChangeFlags.CreationDate) != 0 ||
@@ -339,7 +355,7 @@ public partial class ThreadMailItemViewModel : ObservableRecipient, IMailListIte
             RefreshLatestMailCache();
         }
 
-        var currentLatest = latestMailViewModel;
+        var currentLatest = newestMailViewModel;
         var latestChanged = !ReferenceEquals(previousLatest, currentLatest);
 
         var updatesDisplayedLatest = changedFlags == MailCopyChangeFlags.All ||
diff --git a/Wino.Mail.ViewModels/MailListPageViewModel.cs b/Wino.Mail.ViewModels/MailListPageViewModel.cs
index 9e5887a2..d89c2206 100644
--- a/Wino.Mail.ViewModels/MailListPageViewModel.cs
+++ b/Wino.Mail.ViewModels/MailListPageViewModel.cs
@@ -205,6 +205,7 @@ public partial class MailListPageViewModel : MailBaseViewModel,
 
         SelectedFilterOption = FilterOptions[0];
         SelectedSortingOption = SortingOptions[0];
+        MailCollection.ThreadItemFactory = threadId => new ThreadMailItemViewModel(threadId, PreferencesService.IsNewestThreadMailFirst);
 
         MailListLength = statePersistenceService.MailListPaneLength;
     }
diff --git a/Wino.Mail.ViewModels/MessageListPageViewModel.cs b/Wino.Mail.ViewModels/MessageListPageViewModel.cs
index 019f3d3c..2695e4fe 100644
--- a/Wino.Mail.ViewModels/MessageListPageViewModel.cs
+++ b/Wino.Mail.ViewModels/MessageListPageViewModel.cs
@@ -42,6 +42,12 @@ public partial class MessageListPageViewModel : MailBaseViewModel
         Translator.HoverActionOption_MoveJunk
     ];
 
+    public List<string> ThreadItemSortingOptions { get; } =
+    [
+        Translator.SettingsThreadOrder_LastItemFirst,
+        Translator.SettingsThreadOrder_FirstItemFirst
+    ];
+
     public IMailItemDisplayInformation DemoPreviewMailItemInformation { get; } = new DemoMailItemDisplayInformation();
 
     public MailListDisplayMode SelectedMailSpacingMode => availableMailSpacingOptions[selectedMailSpacingIndex];
@@ -73,6 +79,19 @@ public partial class MessageListPageViewModel : MailBaseViewModel
         }
     }
 
+    private int selectedThreadItemSortingIndex;
+    public int SelectedThreadItemSortingIndex
+    {
+        get => selectedThreadItemSortingIndex;
+        set
+        {
+            if (SetProperty(ref selectedThreadItemSortingIndex, value) && value >= 0)
+            {
+                PreferencesService.IsNewestThreadMailFirst = value == 0;
+            }
+        }
+    }
+
     #region Properties
     private int leftHoverActionIndex;
     public int LeftHoverActionIndex
@@ -128,6 +147,7 @@ public partial class MessageListPageViewModel : MailBaseViewModel
         rightHoverActionIndex = availableHoverActions.IndexOf(PreferencesService.RightHoverAction);
         selectedMailSpacingIndex = availableMailSpacingOptions.IndexOf(PreferencesService.MailItemDisplayMode);
         SelectedMarkAsOptionIndex = Array.IndexOf(Enum.GetValues<MailMarkAsOption>(), PreferencesService.MarkAsPreference);
+        selectedThreadItemSortingIndex = PreferencesService.IsNewestThreadMailFirst ? 0 : 1;
     }
 
     [RelayCommand]
diff --git a/Wino.Mail.WinUI/Services/PreferencesService.cs b/Wino.Mail.WinUI/Services/PreferencesService.cs
index 0abced6c..2a396999 100644
--- a/Wino.Mail.WinUI/Services/PreferencesService.cs
+++ b/Wino.Mail.WinUI/Services/PreferencesService.cs
@@ -117,6 +117,12 @@ public class PreferencesService(IConfigurationService configurationService) : Ob
         set => SetPropertyAndSave(nameof(IsThreadingEnabled), value);
     }
 
+    public bool IsNewestThreadMailFirst
+    {
+        get => _configurationService.Get(nameof(IsNewestThreadMailFirst), true);
+        set => SetPropertyAndSave(nameof(IsNewestThreadMailFirst), value);
+    }
+
     public bool IsMailListActionBarEnabled
     {
         get => _configurationService.Get(nameof(IsMailListActionBarEnabled), false);
diff --git a/Wino.Mail.WinUI/Views/Mail/MailListPage.xaml.cs b/Wino.Mail.WinUI/Views/Mail/MailListPage.xaml.cs
index 960e4ef1..1e3cb57f 100644
--- a/Wino.Mail.WinUI/Views/Mail/MailListPage.xaml.cs
+++ b/Wino.Mail.WinUI/Views/Mail/MailListPage.xaml.cs
@@ -990,10 +990,10 @@ public sealed partial class MailListPage : MailListPageAbstract,
                 }
                 else
                 {
-                    var firstChild = clickedThread.ThreadEmails.FirstOrDefault();
-                    if (firstChild != null)
+                    var defaultSelectedChild = clickedThread.GetDefaultSelectedThreadEmail();
+                    if (defaultSelectedChild != null)
                     {
-                        firstChild.IsSelected = true;
+                        defaultSelectedChild.IsSelected = true;
                     }
                 }
 
diff --git a/Wino.Mail.WinUI/Views/Settings/MessageListPage.xaml b/Wino.Mail.WinUI/Views/Settings/MessageListPage.xaml
index dac301a9..4e97845d 100644
--- a/Wino.Mail.WinUI/Views/Settings/MessageListPage.xaml
+++ b/Wino.Mail.WinUI/Views/Settings/MessageListPage.xaml
@@ -100,13 +100,25 @@
 
                 <ToggleSwitch IsOn="{x:Bind ViewModel.PreferencesService.IsMailListActionBarEnabled, Mode=TwoWay}" />
             </controls:SettingsCard>
-            <controls:SettingsCard Description="{x:Bind domain:Translator.SettingsThreads_Description}" Header="{x:Bind domain:Translator.SettingsThreads_Title}">
-                <controls:SettingsCard.HeaderIcon>
+            <controls:SettingsExpander Description="{x:Bind domain:Translator.SettingsThreads_Description}" Header="{x:Bind domain:Translator.SettingsThreads_Title}">
+                <controls:SettingsExpander.HeaderIcon>
                     <PathIcon Data="F1 M 3.125 8.75 C 2.871094 8.75 2.630208 8.701172 2.402344 8.603516 C 2.174479 8.505859 1.974284 8.370769 1.801758 8.198242 C 1.629232 8.025717 1.494141 7.825521 1.396484 7.597656 C 1.298828 7.369793 1.25 7.128907 1.25 6.875 L 1.25 3.125 C 1.25 2.871094 1.298828 2.630209 1.396484 2.402344 C 1.494141 2.17448 1.629232 1.974285 1.801758 1.801758 C 1.974284 1.629232 2.174479 1.494141 2.402344 1.396484 C 2.630208 1.298828 2.871094 1.25 3.125 1.25 L 4.375 1.25 C 4.544271 1.25 4.690755 1.31185 4.814453 1.435547 C 4.938151 1.559246 5 1.70573 5 1.875 C 5 2.011719 4.975586 2.122396 4.926758 2.207031 C 4.87793 2.291668 4.80957 2.356771 4.72168 2.402344 C 4.633789 2.447918 4.532877 2.477215 4.418945 2.490234 C 4.305013 2.503256 4.186198 2.509766 4.0625 2.509766 C 3.958333 2.509766 3.854167 2.506512 3.75 2.5 C 3.645833 2.49349 3.541667 2.490234 3.4375 2.490234 C 3.307292 2.490234 3.186849 2.498373 3.076172 2.514648 C 2.965495 2.530926 2.866211 2.560223 2.77832 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18.68815 2.809246 18.75 2.95573 18.75 3.125 C 18.75 3.294271 18.68815 3.440756 18.564453 3.564453 C 18.440754 3.688152 18.29427 3.75 18.125 3.75 Z M 6.875 7.5 C 6.705729 7.5 6.559244 7.438151 6.435547 7.314453 C 6.311849 7.190756 6.25 7.044271 6.25 6.875 C 6.25 6.705729 6.311849 6.559245 6.435547 6.435547 C 6.559244 6.31185 6.705729 6.25 6.875 6.25 L 18.125 6.25 C 18.29427 6.25 18.440754 6.31185 18.564453 6.435547 C 18.68815 6.559245 18.75 6.705729 18.75 6.875 C 18.75 7.044271 18.68815 7.190756 18.564453 7.314453 C 18.440754 7.438151 18.29427 7.5 18.125 7.5 Z M 3.125 18.75 C 2.871094 18.75 2.630208 18.701172 2.402344 18.603516 C 2.174479 18.505859 1.974284 18.370768 1.801758 18.198242 C 1.629232 18.025717 1.494141 17.825521 1.396484 17.597656 C 1.298828 17.369791 1.25 17.128906 1.25 16.875 L 1.25 13.125 C 1.25 12.871094 1.298828 12.630209 1.396484 12.402344 C 1.494141 12.174479 1.629232 11.974284 1.801758 11.801758 C 1.974284 11.629232 2.174479 11.494141 2.402344 11.396484 C 2.630208 11.298828 2.871094 11.25 3.125 11.25 L 4.375 11.25 C 4.544271 11.25 4.690755 11.31185 4.814453 11.435547 C 4.938151 11.559245 5 11.705729 5 11.875 C 5 12.011719 4.975586 12.122396 4.926758 12.207031 C 4.87793 12.291667 4.80957 12.356771 4.72168 12.402344 C 4.633789 12.447917 4.532877 12.477214 4.418945 12.490234 C 4.305013 12.503256 4.186198 12.509766 4.0625 12.509766 C 3.958333 12.509766 3.854167 12.506511 3.75 12.5 C 3.645833 12.49349 3.541667 12.490234 3.4375 12.490234 C 3.307292 12.490234 3.186849 12.498373 3.076172 12.514648 C 2.965495 12.530925 2.866211 12.560222 2.77832 12.602539 C 2.69043 12.644857 2.62207 12.708334 2.573242 12.792969 C 2.524414 12.877604 2.5 12.988281 2.5 13.125 L 2.5 16.875 C 2.5 17.011719 2.524414 17.122396 2.573242 17.207031 C 2.62207 17.291666 2.69043 17.356771 2.77832 17.402344 C 2.866211 17.447916 2.965495 17.477213 3.076172 17.490234 C 3.186849 17.503256 3.307292 17.509766 3.4375 17.509766 C 3.541667 17.509766 3.645833 17.50651 3.75 17.5 C 3.854167 17.49349 3.958333 17.490234 4.0625 17.490234 C 4.186198 17.490234 4.305013 17.498373 4.418945 17.514648 C 4.532877 17.530924 4.633789 17.560221 4.72168 17.602539 C 4.80957 17.644857 4.87793 17.708334 4.926758 17.792969 C 4.975586 17.877604 5 17.988281 5 18.125 C 5 18.294271 4.938151 18.440756 4.814453 18.564453 C 4.690755 18.68815 4.544271 18.75 4.375 18.75 Z M 6.875 13.75 C 6.705729 13.75 6.559244 13.688151 6.435547 13.564453 C 6.311849 13.440756 6.25 13.294271 6.25 13.125 C 6.25 12.955729 6.311849 12.809245 6.435547 12.685547 C 6.559244 12.56185 6.705729 12.5 6.875 12.5 L 18.125 12.5 C 18.29427 12.5 18.440754 12.56185 18.564453 12.685547 C 18.68815 12.809245 18.75 12.955729 18.75 13.125 C 18.75 13.294271 18.68815 13.440756 18.564453 13.564453 C 18.440754 13.688151 18.29427 13.75 18.125 13.75 Z M 6.875 17.5 C 6.705729 17.5 6.559244 17.43815 6.435547 17.314453 C 6.311849 17.190756 6.25 17.044271 6.25 16.875 C 6.25 16.705729 6.311849 16.559244 6.435547 16.435547 C 6.559244 16.31185 6.705729 16.25 6.875 16.25 L 18.125 16.25 C 18.29427 16.25 18.440754 16.31185 18.564453 16.435547 C 18.68815 16.559244 18.75 16.705729 18.75 16.875 C 18.75 17.044271 18.68815 17.190756 18.564453 17.314453 C 18.440754 17.43815 18.29427 17.5 18.125 17.5 Z " />
-                </controls:SettingsCard.HeaderIcon>
-
-                <ToggleSwitch IsOn="{x:Bind ViewModel.PreferencesService.IsThreadingEnabled, Mode=TwoWay}" />
-            </controls:SettingsCard>
+                </controls:SettingsExpander.HeaderIcon>
+                <controls:SettingsExpander.Items>
+                    <controls:SettingsCard Description="{x:Bind domain:Translator.SettingsThreads_Enabled_Description}" Header="{x:Bind domain:Translator.SettingsThreads_Enabled_Title}">
+                        <ToggleSwitch IsOn="{x:Bind ViewModel.PreferencesService.IsThreadingEnabled, Mode=TwoWay}" />
+                    </controls:SettingsCard>
+                    <controls:SettingsCard
+                        Description="{x:Bind domain:Translator.SettingsThreadOrder_Description}"
+                        Header="{x:Bind domain:Translator.SettingsThreadOrder_Title}"
+                        IsEnabled="{x:Bind ViewModel.PreferencesService.IsThreadingEnabled, Mode=OneWay}">
+                        <ComboBox
+                            Width="170"
+                            ItemsSource="{x:Bind ViewModel.ThreadItemSortingOptions, Mode=OneWay}"
+                            SelectedIndex="{x:Bind ViewModel.SelectedThreadItemSortingIndex, Mode=TwoWay}" />
+                    </controls:SettingsCard>
+                </controls:SettingsExpander.Items>
+            </controls:SettingsExpander>
             <controls:SettingsExpander Description="{x:Bind domain:Translator.SettingsShowSenderPictures_Description}" Header="{x:Bind domain:Translator.SettingsShowSenderPictures_Title}">
                 <controls:SettingsExpander.HeaderIcon>
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