diff --git a/Experiments/ExternalActionManager/DemoBot/ActionManager/Actions/GuidAction.cs b/Experiments/ExternalActionManager/DemoBot/ActionManager/Actions/GuidAction.cs
index 1c87d64..1f2bdeb 100644
--- a/Experiments/ExternalActionManager/DemoBot/ActionManager/Actions/GuidAction.cs
+++ b/Experiments/ExternalActionManager/DemoBot/ActionManager/Actions/GuidAction.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Linq.Expressions;
 using System.Text;
 using System.Threading.Tasks;
 using TelegramBotBase.Base;
@@ -123,6 +124,23 @@ namespace DemoBot.ActionManager.Actions
     public static class GuidAction_Extensions
     {
 
+        public static void AddGuidAction<TForm>(this ExternalActionManager manager, string method, Expression<Func<TForm, Guid>> propertySelector)
+            where TForm : FormBase
+        {
+            if (!typeof(FormBase).IsAssignableFrom(typeof(TForm)))
+            {
+                throw new ArgumentException($"{nameof(TForm)} argument must be a {nameof(FormBase)} type");
+            }
+
+            var newValue = Expression.Parameter(propertySelector.Body.Type);
+
+            var assign = Expression.Lambda<Action<TForm, Guid>>(Expression.Assign(propertySelector.Body, newValue), propertySelector.Parameters[0], newValue);
+
+            var setter = assign.Compile(true);
+
+            manager.Add(new GuidAction<TForm>(method, setter));
+        }
+
         public static void AddGuidAction<TForm>(this ExternalActionManager manager, string method, Action<TForm, Guid> action)
             where TForm : FormBase
         {
diff --git a/Experiments/ExternalActionManager/DemoBot/ActionManager/Actions/StartWithAction.cs b/Experiments/ExternalActionManager/DemoBot/ActionManager/Actions/StartWithAction.cs
index fe46773..4e17136 100644
--- a/Experiments/ExternalActionManager/DemoBot/ActionManager/Actions/StartWithAction.cs
+++ b/Experiments/ExternalActionManager/DemoBot/ActionManager/Actions/StartWithAction.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Diagnostics;
+using System.Linq.Expressions;
 using TelegramBotBase.Base;
 using TelegramBotBase.DependencyInjection;
 using TelegramBotBase.Form;
@@ -101,7 +102,22 @@ namespace DemoBot.ActionManager.Actions
 
     public static class StartWithAction_Extensions
     {
+        public static void AddStartsWithAction<TForm>(this ExternalActionManager manager, string method, Expression<Func<TForm, String>> propertySelector)
+            where TForm : FormBase
+        {
+            if (!typeof(FormBase).IsAssignableFrom(typeof(TForm)))
+            {
+                throw new ArgumentException($"{nameof(TForm)} argument must be a {nameof(FormBase)} type");
+            }
 
+            var newValue = Expression.Parameter(propertySelector.Body.Type);
+
+            var assign = Expression.Lambda<Action<TForm, String>>(Expression.Assign(propertySelector.Body, newValue), propertySelector.Parameters[0], newValue);
+
+            var setter = assign.Compile(true);
+
+            manager.Add(new StartWithAction<TForm>(method, setter));
+        }
         public static void AddStartsWithAction<TForm>(this ExternalActionManager manager, string value, Action<TForm, String> setProperty)
             where TForm : FormBase
         {
diff --git a/Experiments/ExternalActionManager/DemoBot/Forms/HiddenLetterForm.cs b/Experiments/ExternalActionManager/DemoBot/Forms/HiddenLetterForm.cs
new file mode 100644
index 0000000..72b6f33
--- /dev/null
+++ b/Experiments/ExternalActionManager/DemoBot/Forms/HiddenLetterForm.cs
@@ -0,0 +1,53 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TelegramBotBase.Base;
+using TelegramBotBase.Form;
+
+namespace DemoBot.Forms
+{
+    public class HiddenLetterForm : AutoCleanForm
+    {
+
+        public Guid letterId {  get; set; }
+
+        public HiddenLetterForm()
+        {
+
+            DeleteMode = TelegramBotBase.Enums.EDeleteMode.OnLeavingForm;
+            DeleteSide = TelegramBotBase.Enums.EDeleteSide.Both;
+        }
+
+        public override async Task Action(MessageResult message)
+        {
+            if (message.RawData != "start")
+            {
+                return;
+            }
+
+
+            await message.ConfirmAction("Lets go");
+
+            message.Handled = true;
+
+            var st = new StartForm();
+
+            await NavigateTo(st);
+        }
+
+        public override async Task Render(MessageResult message)
+        {
+
+            var bf = new ButtonForm();
+
+            bf.AddButtonRow("Goto Start", "start");
+
+            await Device.Send($"Welcome to Hidden letter form\n\nYour letter Id is: {letterId}", bf);
+
+
+        }
+
+    }
+}
diff --git a/Experiments/ExternalActionManager/DemoBot/Program.cs b/Experiments/ExternalActionManager/DemoBot/Program.cs
index 84e6220..1a3a12d 100644
--- a/Experiments/ExternalActionManager/DemoBot/Program.cs
+++ b/Experiments/ExternalActionManager/DemoBot/Program.cs
@@ -27,6 +27,11 @@ namespace DemoBot
                 a.value = b;
             });
 
+
+            //Minimal version, using reflection right now
+            eam.AddStartsWithAction<HiddenForm>("a_", a => a.value);
+
+
             eam.AddStartsWithAction(typeof(HiddenForm), "t_", (a, b) =>
             {
                 var hf = a as HiddenForm;
@@ -36,11 +41,17 @@ namespace DemoBot
                 hf.value = b;
             });
 
+
             eam.AddGuidAction<HiddenTicketForm>("tickets", (a, b) =>
             {
                 a.ticketId = b;
             });
 
+
+            //Minimal version, using reflection right now
+            eam.AddGuidAction<HiddenLetterForm>("letters", a => a.letterId);
+
+
             eam.AddGuidAction<HiddenOpenForm>("open", (a, b) =>
             {
                 a.guid = b;
@@ -122,14 +133,18 @@ namespace DemoBot
 
                     String max_value2 = "t_".PadRight(32, '5'); //Starts with
 
+                    String max_value3 = "a_".PadRight(32, '5'); //Starts with
+
                     Guid test_value = Guid.NewGuid(); //Unhandled caller
 
                     var callback_guid = GuidAction.GetCallback("open", Guid.NewGuid()); //HiddenOpenForm
 
                     var callback_tickets = GuidAction.GetCallback("tickets", Guid.NewGuid()); //HiddenTicketForm
 
+                    var callback_letters = GuidAction.GetCallback("letters", Guid.NewGuid()); //HiddenLetterForm
 
-                    String message = $"Test notification from 'outside'\n\nTest values are:\n\nTest: {max_value}\nTest2: {max_value2}\nTest (Guid): {test_value.ToString()}\nTest (Callback Guid): {callback_guid.Value}\nTickets (Guid): {callback_tickets.Value}\n";
+
+                    String message = $"Test notification from 'outside'\n\nTest values are:\n\nTest: {max_value}\nTest2: {max_value2}\nTest3: {max_value3}\nTest (Guid): {test_value.ToString()}\nTest (Callback Guid): {callback_guid.Value}\nTickets (Guid): {callback_tickets.Value}\nLetters (Guid): {callback_letters.Value}\n";
 
 
                     var tb = new TelegramBotClient(Token);
@@ -142,12 +157,16 @@ namespace DemoBot
 
                     bf.AddButtonRow("Test2", max_value2);
 
+                    bf.AddButtonRow("Test3", max_value3);
+
                     bf.AddButtonRow("Test (Guid)", test_value.ToString());
 
                     bf.AddButtonRow("Test (Callback Gui)", callback_guid);
 
                     bf.AddButtonRow("Tickets", callback_tickets);
 
+                    bf.AddButtonRow("Letters", callback_letters);
+
                     bf.AddButtonRow("Close", "close");
 
                     await tb.SendTextMessageAsync(e.DeviceId, message, disableNotification: true, replyMarkup: (InlineKeyboardMarkup)bf);