diff --git a/TelegramBotBase/BotBase.cs b/TelegramBotBase/BotBase.cs
index 9d9c354..9361281 100644
--- a/TelegramBotBase/BotBase.cs
+++ b/TelegramBotBase/BotBase.cs
@@ -20,8 +20,7 @@ namespace TelegramBotBase
     /// Bot base class for full Device/Context and Messagehandling
     /// </summary>
     /// <typeparam name="T"></typeparam>
-    public class BotBase<T>
-        where T : FormBase
+    public class BotBase
     {
         public MessageClient Client { get; set; }
 
@@ -33,7 +32,7 @@ namespace TelegramBotBase
         /// <summary>
         /// List of all running/active sessions
         /// </summary>
-        public SessionBase<T> Sessions { get; set; }
+        public SessionBase Sessions { get; set; }
 
         /// <summary>
         /// Contains System commands which will be available at everytime and didnt get passed to forms, i.e. /start
@@ -65,10 +64,15 @@ namespace TelegramBotBase
         /// </summary>
         public IStateMachine StateMachine { get; set; }
 
+        /// <summary>
+        /// Offers functionality to manage the creation process of the start form.
+        /// </summary>
+        public IStartFormFactory StartFormFactory { get; set; }
+
 
         public Dictionary<eSettings, uint> SystemSettings { get; private set; }
 
-        private BotBase()
+        public BotBase()
         {
             this.SystemSettings = new Dictionary<eSettings, uint>();
 
@@ -80,78 +84,10 @@ namespace TelegramBotBase
 
             this.BotCommands = new List<BotCommand>();
 
-            this.Sessions = new SessionBase<T>();
+            this.Sessions = new SessionBase();
             this.Sessions.BotBase = this;
         }
 
-        /// <summary>
-        /// Simple start of your Bot with the APIKey
-        /// </summary>
-        /// <param name="apiKey"></param>
-        public BotBase(String apiKey, bool initClient = true) : this()
-        {
-            this.APIKey = apiKey;
-
-            if (!initClient)
-                return;
-
-            this.Client = new Base.MessageClient(this.APIKey);
-            this.Client.TelegramClient.Timeout = new TimeSpan(0, 1, 0);
-
-            this.Sessions.Client = this.Client;
-        }
-
-        /// <summary>
-        /// Simple start of your Bot with the APIKey and a proxyAdress
-        /// </summary>
-        /// <param name="apiKey"></param>
-        /// <param name="proxyBaseAddress">i.e. https://127.0.0.1:10000</param>
-        public BotBase(String apiKey, System.Net.Http.HttpClient proxy) : this(apiKey, false)
-        {
-            this.Client = new Base.MessageClient(this.APIKey, proxy);
-
-            this.Sessions.Client = this.Client;
-        }
-
-        /// <summary>
-        /// Simple start of your Bot with the APIKey and a TelegramBotClient instance.
-        /// </summary>
-        /// <param name="apiKey"></param>
-        /// <param name="client"></param>
-        public BotBase(String apiKey, TelegramBotClient client) : this(apiKey, false)
-        {
-            this.Client = new Base.MessageClient(this.APIKey, client);
-
-            this.Sessions.Client = this.Client;
-        }
-
-        /// <summary>
-        /// Simple start of your Bot with the APIKey and a proxyAdress
-        /// </summary>
-        /// <param name="apiKey"></param>
-        /// <param name="proxyBaseAddress">i.e. https://127.0.0.1:10000</param>
-        public BotBase(String apiKey, String proxyBaseAddress) : this(apiKey, false)
-        {
-            var url = new Uri(proxyBaseAddress);
-
-            this.Client = new Base.MessageClient(this.APIKey, url);
-
-            this.Sessions.Client = this.Client;
-        }
-
-        /// <summary>
-        /// Simple start of your Bot with the APIKey and a proxyAdress
-        /// </summary>
-        /// <param name="apiKey"></param>
-        /// <param name="proxyHost">i.e. 127.0.0.1</param>
-        /// <param name="proxyPort">i.e. 10000</param>
-        public BotBase(String apiKey, String proxyHost, int proxyPort) : this(apiKey, false)
-        {
-            this.Client = new Base.MessageClient(this.APIKey, proxyHost, proxyPort);
-
-            this.Sessions.Client = this.Client;
-        }
-
         /// <summary>
         /// Start your Bot
         /// </summary>
@@ -324,7 +260,7 @@ namespace TelegramBotBase
             DeviceSession ds = e.Device;
             if (ds == null)
             {
-                ds = await this.Sessions.StartSession<T>(e.DeviceId);
+                ds = await this.Sessions.StartSession(e.DeviceId);
                 e.Device = ds;
                 ds.LastMessage = e.Message;
 
@@ -483,7 +419,7 @@ namespace TelegramBotBase
             DeviceSession ds = e.Device;
             if (ds == null)
             {
-                ds = await this.Sessions.StartSession<T>(e.DeviceId);
+                ds = await this.Sessions.StartSession(e.DeviceId);
                 e.Device = ds;
             }
 
diff --git a/TelegramBotBase/Builder/BotBaseBuilder.cs b/TelegramBotBase/Builder/BotBaseBuilder.cs
new file mode 100644
index 0000000..c4595f0
--- /dev/null
+++ b/TelegramBotBase/Builder/BotBaseBuilder.cs
@@ -0,0 +1,105 @@
+using System;
+using System.Collections.Generic;
+using System.Net.Http;
+using System.Text;
+using Telegram.Bot;
+using TelegramBotBase.Base;
+using TelegramBotBase.Builder.Interfaces;
+using TelegramBotBase.Form;
+using TelegramBotBase.Interfaces;
+
+namespace TelegramBotBase.Builder
+{
+    public class BotBaseBuilder : IAPIKeySelectionStage, IStartFormSelectionPage, IBuildingStage, INetworkingSelectionStage
+    {
+
+        String apiKey = null;
+
+        IStartFormFactory factory = null;
+
+        MessageClient client = null;
+
+        public static IAPIKeySelectionStage Create()
+        {
+            return new BotBaseBuilder();
+        }
+
+        public IStartFormSelectionPage WithAPIKey(string apiKey)
+        {
+            this.apiKey = apiKey;
+            return this;
+        }
+
+        public INetworkingSelectionStage WithStartForm(Type startFormClass)
+        {
+            this.factory = new Factories.DefaultStartFormFactory(startFormClass);
+            return this;
+        }
+
+        public INetworkingSelectionStage WithStartForm<T>()
+            where T : FormBase, new()
+        {
+            this.factory = new Factories.DefaultStartFormFactory(typeof(T));
+            return this;
+        }
+
+        public INetworkingSelectionStage WithStartFormFactory(IStartFormFactory factory)
+        {
+            this.factory = factory;
+            return this;
+        }
+
+
+        public IBuildingStage WithProxy(string proxyAddress)
+        {
+            var url = new Uri(proxyAddress);
+            client = new MessageClient(apiKey, url);
+            client.TelegramClient.Timeout = new TimeSpan(0, 1, 0);
+            return this;
+        }
+
+        public IBuildingStage NoProxy()
+        {
+            client = new MessageClient(apiKey);
+            client.TelegramClient.Timeout = new TimeSpan(0, 1, 0);
+            return this;
+        }
+
+
+        public IBuildingStage WithBotClient(TelegramBotClient tgclient)
+        {
+            client = new MessageClient(apiKey, tgclient);
+            client.TelegramClient.Timeout = new TimeSpan(0, 1, 0);
+            return this;
+        }
+
+        public IBuildingStage WithHostAndPort(string proxyHost, int proxyPort)
+        {
+            client = new MessageClient(apiKey, proxyHost, proxyPort);
+            client.TelegramClient.Timeout = new TimeSpan(0, 1, 0);
+            return this;
+        }
+
+        public IBuildingStage WithHttpClient(HttpClient tgclient)
+        {
+            client = new MessageClient(apiKey, tgclient);
+            client.TelegramClient.Timeout = new TimeSpan(0, 1, 0);
+            return this;
+        }
+
+        public BotBase Build()
+        {
+            var bb = new BotBase();
+
+            bb.APIKey = apiKey;
+            bb.StartFormFactory = factory;
+
+            bb.Client = client;
+
+            bb.Sessions.Client = bb.Client;
+
+            return bb;
+        }
+
+    }
+}
diff --git a/TelegramBotBase/Builder/Interfaces/IAPIKeySelectionStage.cs b/TelegramBotBase/Builder/Interfaces/IAPIKeySelectionStage.cs
new file mode 100644
index 0000000..5e33a8f
--- /dev/null
+++ b/TelegramBotBase/Builder/Interfaces/IAPIKeySelectionStage.cs
@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace TelegramBotBase.Builder.Interfaces
+{
+    public interface IAPIKeySelectionStage
+    {
+        /// <summary>
+        /// Sets the API Key which will be used by the telegram bot client.
+        /// </summary>
+        /// <param name="apiKey"></param>
+        /// <returns></returns>
+        IStartFormSelectionPage WithAPIKey(String apiKey);
+
+    }
+}
diff --git a/TelegramBotBase/Builder/Interfaces/IBuildingStage.cs b/TelegramBotBase/Builder/Interfaces/IBuildingStage.cs
new file mode 100644
index 0000000..8313b0b
--- /dev/null
+++ b/TelegramBotBase/Builder/Interfaces/IBuildingStage.cs
@@ -0,0 +1,11 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace TelegramBotBase.Builder.Interfaces
+{
+    public interface IBuildingStage
+    {
+        BotBase Build();
+    }
+}
diff --git a/TelegramBotBase/Builder/Interfaces/INetworkingSelectionStage.cs b/TelegramBotBase/Builder/Interfaces/INetworkingSelectionStage.cs
new file mode 100644
index 0000000..1a60a90
--- /dev/null
+++ b/TelegramBotBase/Builder/Interfaces/INetworkingSelectionStage.cs
@@ -0,0 +1,49 @@
+using System;
+using System.Collections.Generic;
+using System.Net.Http;
+using System.Text;
+using Telegram.Bot;
+
+namespace TelegramBotBase.Builder.Interfaces
+{
+    public interface INetworkingSelectionStage
+    {
+        /// <summary>
+        /// Chooses a proxy as network configuration.
+        /// </summary>
+        /// <param name="proxyAddress"></param>
+        /// <returns></returns>
+        IBuildingStage WithProxy(String proxyAddress);
+
+        /// <summary>
+        /// Do not choose a proxy as network configuration.
+        /// </summary>
+        /// <returns></returns>
+        IBuildingStage NoProxy();
+
+
+        /// <summary>
+        /// Chooses a custom instance of TelegramBotClient.
+        /// </summary>
+        /// <param name="client"></param>
+        /// <returns></returns>
+        IBuildingStage WithBotClient(TelegramBotClient client);
+
+        /// <summary>
+        /// Sets the custom proxy host and port.
+        /// </summary>
+        /// <param name="proxyHost"></param>
+        /// <param name="Port"></param>
+        /// <returns></returns>
+        IBuildingStage WithHostAndPort(String proxyHost, int Port);
+
+        /// <summary>
+        /// Uses a custom http client.
+        /// </summary>
+        /// <param name="client"></param>
+        /// <returns></returns>
+        IBuildingStage WithHttpClient(HttpClient client);
+
+
+    }
+}
diff --git a/TelegramBotBase/Builder/Interfaces/IStartFormSelectionPage.cs b/TelegramBotBase/Builder/Interfaces/IStartFormSelectionPage.cs
new file mode 100644
index 0000000..05ba793
--- /dev/null
+++ b/TelegramBotBase/Builder/Interfaces/IStartFormSelectionPage.cs
@@ -0,0 +1,34 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using TelegramBotBase.Form;
+using TelegramBotBase.Interfaces;
+
+namespace TelegramBotBase.Builder.Interfaces
+{
+    public interface IStartFormSelectionPage
+    {
+
+        /// <summary>
+        /// Chooses a start form type which will be used for new sessions.
+        /// </summary>
+        /// <typeparam name="T"></typeparam>
+        /// <returns></returns>
+        INetworkingSelectionStage WithStartForm(Type startFormClass);
+
+        /// <summary>
+        /// Chooses a generic start form which will be used for new sessions.
+        /// </summary>
+        /// <typeparam name="T"></typeparam>
+        /// <returns></returns>
+        INetworkingSelectionStage WithStartForm<T>() where T : FormBase, new();
+
+        /// <summary>
+        /// Chooses a StartFormFactory which will be use for new sessions.
+        /// </summary>
+        /// <param name="factory"></param>
+        /// <returns></returns>
+        INetworkingSelectionStage WithStartFormFactory(IStartFormFactory factory);
+
+    }
+}
diff --git a/TelegramBotBase/Factories/DefaultStartFormFactory.cs b/TelegramBotBase/Factories/DefaultStartFormFactory.cs
new file mode 100644
index 0000000..e3c7c20
--- /dev/null
+++ b/TelegramBotBase/Factories/DefaultStartFormFactory.cs
@@ -0,0 +1,26 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using TelegramBotBase.Form;
+
+namespace TelegramBotBase.Factories
+{
+    public class DefaultStartFormFactory : Interfaces.IStartFormFactory
+    {
+        private readonly Type _startFormClass;
+
+        public DefaultStartFormFactory(Type startFormClass)
+        {
+            if (!typeof(FormBase).IsAssignableFrom(startFormClass))
+                throw new ArgumentException("startFormClass argument must be a FormBase type");
+
+            _startFormClass = startFormClass;
+        }
+
+
+        public FormBase CreateForm()
+        {
+            return _startFormClass.GetConstructor(new Type[] { })?.Invoke(new object[] { }) as FormBase;
+        }
+    }
+}
diff --git a/TelegramBotBase/Interfaces/IStartFormFactory.cs b/TelegramBotBase/Interfaces/IStartFormFactory.cs
new file mode 100644
index 0000000..7c1c44d
--- /dev/null
+++ b/TelegramBotBase/Interfaces/IStartFormFactory.cs
@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using TelegramBotBase.Form;
+
+namespace TelegramBotBase.Interfaces
+{
+    public interface IStartFormFactory
+    {
+        FormBase CreateForm();
+    }
+}
diff --git a/TelegramBotBase/SessionBase.cs b/TelegramBotBase/SessionBase.cs
index 33dc0fb..60e947f 100644
--- a/TelegramBotBase/SessionBase.cs
+++ b/TelegramBotBase/SessionBase.cs
@@ -16,14 +16,13 @@ namespace TelegramBotBase
     /// <summary>
     /// Base class for managing all active sessions
     /// </summary>
-    public class SessionBase<T>
-        where T : FormBase
+    public class SessionBase
     {
         public MessageClient Client { get; set; }
 
         public Dictionary<long, DeviceSession> SessionList { get; set; }
 
-        public BotBase<T> BotBase { get; set; }
+        public BotBase BotBase { get; set; }
 
 
         public SessionBase()
@@ -65,10 +64,10 @@ namespace TelegramBotBase
         /// <typeparam name="T"></typeparam>
         /// <param name="deviceId"></param>
         /// <returns></returns>
-        public async Task<DeviceSession> StartSession<T>(long deviceId)
-            where T : FormBase
+        public async Task<DeviceSession> StartSession(long deviceId)
         {
-            T start = typeof(T).GetConstructor(new Type[] { }).Invoke(new object[] { }) as T;
+            var start = BotBase.StartFormFactory.CreateForm();
+            //T start = typeof(T).GetConstructor(new Type[] { }).Invoke(new object[] { }) as T;
 
             start.Client = this.Client;
 
@@ -239,7 +238,7 @@ namespace TelegramBotBase
 
         }
 
-       
+
 
 
         /// <summary>