diff --git a/EDMI_ClientSuite/ClassConfig.vb b/EDMI_ClientSuite/ClassConfig.vb
index 34f14285..d4a2c7f5 100644
--- a/EDMI_ClientSuite/ClassConfig.vb
+++ b/EDMI_ClientSuite/ClassConfig.vb
@@ -1,3 +1,43 @@
-Public Class ClassConfig
-    Public Property ServiceConnection As String = String.Empty
+Imports System.ComponentModel
+Imports System.Runtime.CompilerServices
+Imports System.Xml.Serialization
+
+''' <summary>
+''' --- User Config for EDMI ---
+''' 
+''' All settings are simple properties that should have a default value where possible
+''' 
+''' More complex properties (for example, ServiceConnection) are built from simple ones,
+''' should be readonly and have an `XmlIgnore` Attribute to prevent them from being saved to the config file.
+''' 
+''' They can make saving and loading complex properties more easy.
+''' 
+''' The config is loaded with `ConfigManager` which is initialized in ApplicationEvents 
+''' to ensure that the config is loaded before any of the forms (that might need a config)
+''' 
+''' The config object can be accessed in two ways:
+''' 
+''' - My.ConfigManager.Config
+''' - My.Config (which simply points to My.ConfigManager.Config)
+''' 
+''' After changing a config value, My.ConfigManager.Save() must be called to persist the change in the config file
+''' </summary>
+Public Class ClassConfig
+    ' === Complex/Readonly Config Properties
+    <XmlIgnore>
+    Public ReadOnly Property ServiceConnection As String
+        Get
+            If ServiceIP = String.Empty Or ServicePort = -1 Then
+                Return String.Empty
+            Else
+                Return $"net.tcp://{ServiceIP}:{ServicePort}/DigitalData/Services/Main"
+            End If
+        End Get
+    End Property
+
+    ' === Simple/Actual Config Properties ===
+    Public Property ServiceIP As String = String.Empty
+    Public Property ServicePort As Integer = -1
+    Public Property LogDebug As Boolean = False
+    Public Property UserLanguage As String = "de-DE"
 End Class
diff --git a/EDMI_ClientSuite/MyApplication.vb b/EDMI_ClientSuite/MyApplication.vb
index f0442aed..a6e04ea8 100644
--- a/EDMI_ClientSuite/MyApplication.vb
+++ b/EDMI_ClientSuite/MyApplication.vb
@@ -12,6 +12,11 @@ Namespace My
     <HideModuleName()>
     Module Extension
         Property ConfigManager As ConfigManager(Of ClassConfig)
+        ReadOnly Property Config As ClassConfig
+            Get
+                Return ConfigManager.Config
+            End Get
+        End Property
         Property LogConfig As LogConfig
         Property ChannelFactory As ChannelFactory(Of IEDMServiceChannel)
         Property Channel As IEDMServiceChannel
diff --git a/EDMI_ClientSuite/frmConfigService.vb b/EDMI_ClientSuite/frmConfigService.vb
index 3fbfd691..9e9ef5a2 100644
--- a/EDMI_ClientSuite/frmConfigService.vb
+++ b/EDMI_ClientSuite/frmConfigService.vb
@@ -6,6 +6,11 @@ Public Class frmConfigService
     Private Sub frmServiceConfig_Load(sender As Object, e As EventArgs) Handles Me.Load
         _Init = New ClassInit()
 
+        If My.ConfigManager.Config.ServiceConnection <> String.Empty Then
+            txtIPAddress.Text = My.ConfigManager.Config.ServiceIP
+            txtPort.Text = My.ConfigManager.Config.ServicePort
+        End If
+
         txtIPAddress.Focus()
     End Sub
 
@@ -15,12 +20,14 @@ Public Class frmConfigService
         Dim oEndpointURL = $"net.tcp://{oIPAddress}:{oPort}/DigitalData/Services/Main"
         Dim oResult As ConnectionTestResult
 
+        My.Config.ServiceIP = oIPAddress
+        My.Config.ServicePort = Integer.Parse(oPort)
+
         lblStatus.Text = "Verbindung wird hergestellt..."
-        oResult = Await _Init.TestConnectionAsync(oEndpointURL)
+        oResult = Await _Init.TestConnectionAsync(My.ConfigManager.Config.ServiceConnection)
 
         If oResult = ConnectionTestResult.Successful Then
             ' Save Endpoint URL
-            My.ConfigManager.Config.ServiceConnection = oEndpointURL
             My.ConfigManager.Save()
             'My.Settings.ICMServiceAddress = oEndpointURL
             lblStatus.Text = "Verbindung hergestellt."
diff --git a/EDMI_ClientSuite/frmConfigUser.Designer.vb b/EDMI_ClientSuite/frmConfigUser.Designer.vb
index 94f24f2a..7d598497 100644
--- a/EDMI_ClientSuite/frmConfigUser.Designer.vb
+++ b/EDMI_ClientSuite/frmConfigUser.Designer.vb
@@ -1,9 +1,9 @@
-<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
+<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()>
 Partial Class frmConfigUser
     Inherits System.Windows.Forms.Form
 
     'Das Formular überschreibt den Löschvorgang, um die Komponentenliste zu bereinigen.
-    <System.Diagnostics.DebuggerNonUserCode()> _
+    <System.Diagnostics.DebuggerNonUserCode()>
     Protected Overrides Sub Dispose(ByVal disposing As Boolean)
         Try
             If disposing AndAlso components IsNot Nothing Then
@@ -20,11 +20,10 @@ Partial Class frmConfigUser
     'Hinweis: Die folgende Prozedur ist für den Windows Form-Designer erforderlich.
     'Das Bearbeiten ist mit dem Windows Form-Designer möglich.  
     'Das Bearbeiten mit dem Code-Editor ist nicht möglich.
-    <System.Diagnostics.DebuggerStepThrough()> _
+    <System.Diagnostics.DebuggerStepThrough()>
     Private Sub InitializeComponent()
         Dim resources As System.ComponentModel.ComponentResourceManager = New System.ComponentModel.ComponentResourceManager(GetType(frmConfigUser))
         Me.TabPageSupport = New DevExpress.XtraTab.XtraTabPage()
-        Me.SimpleButton1 = New DevExpress.XtraEditors.SimpleButton()
         Me.btnAppFolder = New DevExpress.XtraEditors.SimpleButton()
         Me.btnLogFolder = New DevExpress.XtraEditors.SimpleButton()
         Me.Button4 = New System.Windows.Forms.Button()
@@ -43,7 +42,6 @@ Partial Class frmConfigUser
         '
         'TabPageSupport
         '
-        Me.TabPageSupport.Controls.Add(Me.SimpleButton1)
         Me.TabPageSupport.Controls.Add(Me.btnAppFolder)
         Me.TabPageSupport.Controls.Add(Me.btnLogFolder)
         Me.TabPageSupport.Controls.Add(Me.Button4)
@@ -51,18 +49,9 @@ Partial Class frmConfigUser
         Me.TabPageSupport.Controls.Add(Me.chkLogErrorsOnly)
         Me.TabPageSupport.ImageOptions.Image = CType(resources.GetObject("TabPageSupport.ImageOptions.Image"), System.Drawing.Image)
         Me.TabPageSupport.Name = "TabPageSupport"
-        Me.TabPageSupport.Size = New System.Drawing.Size(703, 448)
+        Me.TabPageSupport.Size = New System.Drawing.Size(700, 444)
         Me.TabPageSupport.Text = "Support"
         '
-        'SimpleButton1
-        '
-        Me.SimpleButton1.ImageOptions.Image = CType(resources.GetObject("SimpleButton1.ImageOptions.Image"), System.Drawing.Image)
-        Me.SimpleButton1.Location = New System.Drawing.Point(349, 100)
-        Me.SimpleButton1.Name = "SimpleButton1"
-        Me.SimpleButton1.Size = New System.Drawing.Size(164, 36)
-        Me.SimpleButton1.TabIndex = 21
-        Me.SimpleButton1.Text = "AppData Ordner öffnen"
-        '
         'btnAppFolder
         '
         Me.btnAppFolder.ImageOptions.Image = CType(resources.GetObject("btnAppFolder.ImageOptions.Image"), System.Drawing.Image)
@@ -135,7 +124,7 @@ Partial Class frmConfigUser
         Me.TabPageMain.Controls.Add(Me.cmbLanguage)
         Me.TabPageMain.ImageOptions.Image = CType(resources.GetObject("TabPageMain.ImageOptions.Image"), System.Drawing.Image)
         Me.TabPageMain.Name = "TabPageMain"
-        Me.TabPageMain.Size = New System.Drawing.Size(703, 448)
+        Me.TabPageMain.Size = New System.Drawing.Size(700, 444)
         Me.TabPageMain.Text = "Allgemein"
         '
         'Label1
@@ -197,5 +186,4 @@ Partial Class frmConfigUser
     Friend WithEvents cmbLanguage As ComboBox
     Friend WithEvents btnLogFolder As DevExpress.XtraEditors.SimpleButton
     Friend WithEvents btnAppFolder As DevExpress.XtraEditors.SimpleButton
-    Friend WithEvents SimpleButton1 As DevExpress.XtraEditors.SimpleButton
 End Class
diff --git a/EDMI_ClientSuite/frmConfigUser.resx b/EDMI_ClientSuite/frmConfigUser.resx
index 8540ece9..c4c2117d 100644
--- a/EDMI_ClientSuite/frmConfigUser.resx
+++ b/EDMI_ClientSuite/frmConfigUser.resx
@@ -118,15 +118,6 @@
     <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
   </resheader>
   <assembly alias="System.Drawing" name="System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
-  <data name="SimpleButton1.ImageOptions.Image" type="System.Drawing.Bitmap, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
-    <value>
-        iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABGdBTUEAALGPC/xhBQAAABl0RVh0U29m
-        dHdhcmUAQWRvYmUgSW1hZ2VSZWFkeXHJZTwAAAArdEVYdFRpdGxlAE9wZW47Rm9sZGVyO0JhcnM7Umli
-        Ym9uO1N0YW5kYXJkO0xvYWTxw8RjAAAAb0lEQVQ4T6XQ0Q2AIAwEUBbsMs7Q0ZzHFeqVRIJ6VQof7+fC
-        XUiLmS2hYQYNM4qqChjhOS31fICVL8JKvb+BSBueHUB3cQCGB+oxmWjgVjj2TcAC8hzwx1+Fl34gXYb2
-        g6ky1BtMl1295AoajrNyArCYwjN4ThJYAAAAAElFTkSuQmCC
-</value>
-  </data>
   <data name="btnAppFolder.ImageOptions.Image" type="System.Drawing.Bitmap, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>
         iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABGdBTUEAALGPC/xhBQAAABl0RVh0U29m
diff --git a/EDMI_ClientSuite/frmConfigUser.vb b/EDMI_ClientSuite/frmConfigUser.vb
index 44537f4f..9f083691 100644
--- a/EDMI_ClientSuite/frmConfigUser.vb
+++ b/EDMI_ClientSuite/frmConfigUser.vb
@@ -13,6 +13,8 @@ Public Class frmConfigUser
 
     Private Sub frmUserBasics_Load(sender As Object, e As EventArgs) Handles Me.Load
         _Logger = My.LogConfig.GetLogger()
+
+        chkLogErrorsOnly.Checked = Not My.Config.LogDebug
     End Sub
 
     Private Sub btnLogFolder_Click(sender As Object, e As EventArgs) Handles btnLogFolder.Click
@@ -23,8 +25,10 @@ Public Class frmConfigUser
         Process.Start(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData))
     End Sub
 
-    Private Sub SimpleButton1_Click(sender As Object, e As EventArgs) Handles SimpleButton1.Click
-        Dim config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.PerUserRoamingAndLocal)
-        MessageBox.Show(config.FilePath)
+    Private Sub chkLogErrorsOnly_CheckedChanged(sender As Object, e As EventArgs) Handles chkLogErrorsOnly.CheckedChanged
+        Dim oLogDebug = Not chkLogErrorsOnly.Checked
+        My.LogConfig.Debug = oLogDebug
+        My.Config.LogDebug = oLogDebug
+        My.ConfigManager.Save()
     End Sub
 End Class
\ No newline at end of file