diff --git a/Sevomin.Models/Helpers/SevominUserValidator.cs b/Sevomin.Models/Helpers/SevominUserValidator.cs
index 5db8b1b..5c4ac69 100644
--- a/Sevomin.Models/Helpers/SevominUserValidator.cs
+++ b/Sevomin.Models/Helpers/SevominUserValidator.cs
@@ -14,7 +14,7 @@ namespace Sevomin.Models.Helpers
 
         public SevominUserValidator()
         {
-            manager = new UserManager<User>(new UserStore<User>(new UsersDbContext()));
+            manager = new UserManager<User>(new UserStore<User>(SevominDbContext.Current));
         }
 
         public async Task<IdentityResult> ValidateAsync(User item)
diff --git a/Sevomin.Models/Migrations/201403280733264_Param values.Designer.cs b/Sevomin.Models/Migrations/201403280733264_Param values.Designer.cs
new file mode 100644
index 0000000..2cbee85
--- /dev/null
+++ b/Sevomin.Models/Migrations/201403280733264_Param values.Designer.cs	
@@ -0,0 +1,29 @@
+// <auto-generated />
+namespace Sevomin.Models.Migrations
+{
+    using System.CodeDom.Compiler;
+    using System.Data.Entity.Migrations;
+    using System.Data.Entity.Migrations.Infrastructure;
+    using System.Resources;
+    
+    [GeneratedCode("EntityFramework.Migrations", "6.1.0-30225")]
+    public sealed partial class Paramvalues : IMigrationMetadata
+    {
+        private readonly ResourceManager Resources = new ResourceManager(typeof(Paramvalues));
+        
+        string IMigrationMetadata.Id
+        {
+            get { return "201403280733264_Param values"; }
+        }
+        
+        string IMigrationMetadata.Source
+        {
+            get { return null; }
+        }
+        
+        string IMigrationMetadata.Target
+        {
+            get { return Resources.GetString("Target"); }
+        }
+    }
+}
diff --git a/Sevomin.Models/Migrations/201403280733264_Param values.cs b/Sevomin.Models/Migrations/201403280733264_Param values.cs
new file mode 100644
index 0000000..5d47ca1
--- /dev/null
+++ b/Sevomin.Models/Migrations/201403280733264_Param values.cs	
@@ -0,0 +1,47 @@
+namespace Sevomin.Models.Migrations
+{
+    using System;
+    using System.Data.Entity.Migrations;
+    
+    public partial class Paramvalues : DbMigration
+    {
+        public override void Up()
+        {
+            CreateTable(
+                "dbo.Parameters",
+                c => new
+                    {
+                        Id = c.Int(nullable: false, identity: true),
+                        Name = c.String(nullable: false),
+                        Moscow = c.Boolean(nullable: false),
+                        DisplayMethod = c.Byte(nullable: false),
+                        GroupName = c.String(nullable: false),
+                        CommentAvalin = c.String(maxLength: 140),
+                        CommentDovomin = c.String(maxLength: 140),
+                        ParameterValueId = c.String(maxLength: 50),
+                    })
+                .PrimaryKey(t => t.Id)
+                .Index(t=>t.ParameterValueId);
+
+            CreateTable(
+                "dbo.ParameterValues",
+                c => new
+                    {
+                        GroupKey = c.String(nullable: false, maxLength: 50),
+                        Value = c.String(nullable: false, maxLength: 50),
+                    })
+                .PrimaryKey(t => new { t.GroupKey, t.Value })
+                .Index(t => t.GroupKey);
+            
+        }
+        
+        public override void Down()
+        {
+            DropForeignKey("dbo.ParameterValues", "Parameter_Id", "dbo.Parameters");
+            DropIndex("dbo.ParameterValues", new[] { "Parameter_Id" });
+            DropIndex("dbo.ParameterValues", new[] { "GroupKey" });
+            DropTable("dbo.ParameterValues");
+            DropTable("dbo.Parameters");
+        }
+    }
+}
diff --git a/Sevomin.Models/Migrations/201403280733264_Param values.resx b/Sevomin.Models/Migrations/201403280733264_Param values.resx
new file mode 100644
index 0000000..ea148e9
--- /dev/null
+++ b/Sevomin.Models/Migrations/201403280733264_Param values.resx	
@@ -0,0 +1,126 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <data name="Target" xml:space="preserve">
+    <value>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</value>
+  </data>
+  <data name="DefaultSchema" xml:space="preserve">
+    <value>dbo</value>
+  </data>
+</root>
\ No newline at end of file
diff --git a/Sevomin.Models/Migrations/Configuration.cs b/Sevomin.Models/Migrations/Configuration.cs
index 86324d0..ac2734d 100644
--- a/Sevomin.Models/Migrations/Configuration.cs
+++ b/Sevomin.Models/Migrations/Configuration.cs
@@ -5,7 +5,7 @@ namespace Sevomin.Models.Migrations
     using System.Data.Entity.Migrations;
     using System.Linq;
 
-    internal sealed class Configuration : DbMigrationsConfiguration<Sevomin.Models.UsersDbContext>
+    internal sealed class Configuration : DbMigrationsConfiguration<Sevomin.Models.SevominDbContext>
     {
         public Configuration()
         {
@@ -13,7 +13,7 @@ namespace Sevomin.Models.Migrations
             ContextKey = "Sevomin.Models.UsersDbContext";
         }
 
-        protected override void Seed(Sevomin.Models.UsersDbContext context)
+        protected override void Seed(Sevomin.Models.SevominDbContext context)
         {
             //  This method will be called after migrating to the latest version.
 
diff --git a/Sevomin.Models/Parameter.cs b/Sevomin.Models/Parameter.cs
index 91ba817..7797e24 100644
--- a/Sevomin.Models/Parameter.cs
+++ b/Sevomin.Models/Parameter.cs
@@ -33,6 +33,16 @@ namespace Sevomin.Models
         [StringLength(140)]
         public string CommentDovomin { get; set; }
 
-
+        [StringLength(50)]
+        public string ParameterValueId { get; set; }
+
+        [NotMapped]
+        public ICollection<ParameterValue> ParameterValues
+        {
+            get
+            {
+                return SevominDbContext.Current.ParameterValues.Where(x => x.GroupKey == ParameterValueId).ToList();
+            }
+        }
     }
 }
diff --git a/Sevomin.Models/ParameterValue.cs b/Sevomin.Models/ParameterValue.cs
index 283185d..1bcc267 100644
--- a/Sevomin.Models/ParameterValue.cs
+++ b/Sevomin.Models/ParameterValue.cs
@@ -10,16 +10,17 @@ namespace Sevomin.Models
 {
     public class ParameterValue
     {
-        [Key]
-        public int Id { get; set; }
-
         [Required]
         [Index]
-        [Index("IX_UniqueKey", 1, IsUnique=true)]
-        public int GroupKey { get; set; }
+        [Key]
+        [Column(Order=1)]
+        [StringLength(50)]
+        public string GroupKey { get; set; }
 
         [Required]
-        [Index("IX_UniqueKey", 2, IsUnique = true)]
+        [Key]
+        [Column(Order = 2)]
+        [StringLength(50)]
         public string Value { get; set; }
     }
 }
diff --git a/Sevomin.Models/Sevomin.Models.csproj b/Sevomin.Models/Sevomin.Models.csproj
index a76c72c..8694038 100644
--- a/Sevomin.Models/Sevomin.Models.csproj
+++ b/Sevomin.Models/Sevomin.Models.csproj
@@ -49,6 +49,7 @@
     <Reference Include="System" />
     <Reference Include="System.ComponentModel.DataAnnotations" />
     <Reference Include="System.Core" />
+    <Reference Include="System.Web" />
     <Reference Include="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\packages\Microsoft.AspNet.Mvc.5.0.0\lib\net45\System.Web.Mvc.dll</HintPath>
@@ -81,6 +82,10 @@
     <Compile Include="Migrations\201403270733330_Avvalin-update.Designer.cs">
       <DependentUpon>201403270733330_Avvalin-update.cs</DependentUpon>
     </Compile>
+    <Compile Include="Migrations\201403280733264_Param values.cs" />
+    <Compile Include="Migrations\201403280733264_Param values.Designer.cs">
+      <DependentUpon>201403280733264_Param values.cs</DependentUpon>
+    </Compile>
     <Compile Include="Migrations\Configuration.cs" />
     <Compile Include="Parameter.cs" />
     <Compile Include="ParameterValue.cs" />
@@ -107,6 +112,9 @@
     <EmbeddedResource Include="Migrations\201403270733330_Avvalin-update.resx">
       <DependentUpon>201403270733330_Avvalin-update.cs</DependentUpon>
     </EmbeddedResource>
+    <EmbeddedResource Include="Migrations\201403280733264_Param values.resx">
+      <DependentUpon>201403280733264_Param values.cs</DependentUpon>
+    </EmbeddedResource>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
diff --git a/Sevomin.Models/UsersDbContext.cs b/Sevomin.Models/UsersDbContext.cs
index d487dce..49268d1 100644
--- a/Sevomin.Models/UsersDbContext.cs
+++ b/Sevomin.Models/UsersDbContext.cs
@@ -1,9 +1,47 @@
-using Microsoft.AspNet.Identity.EntityFramework;
+using System;
+using System.Data.Entity;
+using System.Web;
+using Microsoft.AspNet.Identity.EntityFramework;
 
 namespace Sevomin.Models
 {
-    public class UsersDbContext : IdentityDbContext<User>
+    public class SevominDbContext : IdentityDbContext<User>
     {
-        public UsersDbContext() : base("UsersConnectionString") { }
+        
+        #region Singleton
+        private static object locker = new object();
+
+        public SevominDbContext() : base("UsersConnectionString") { }
+        
+        public static SevominDbContext Current
+        {
+            get
+            {
+                lock (locker)
+                {
+                    if (HttpContext.Current.Items["DataContexMember"] != null &&
+                        HttpContext.Current.Items["DataContexMember"] is SevominDbContext)
+                        return (SevominDbContext)HttpContext.Current.Items["DataContexMember"];
+                    RenewMember();
+                    return (SevominDbContext)HttpContext.Current.Items["DataContexMember"];
+                }
+            }
+
+        }
+
+        public static void RenewMember()
+        {
+            SevominDbContext pe =
+                new SevominDbContext();
+            HttpContext.Current.Items["DataContexMember"] = pe;
+            GC.Collect();
+        }
+
+        #endregion
+
+
+
+        public DbSet<Parameter> Parameters { get; set; }
+        public DbSet<ParameterValue> ParameterValues { get; set; }
     }
 }
diff --git a/Sevomin.WebFrontend.Controllers/AccountController.cs b/Sevomin.WebFrontend.Controllers/AccountController.cs
index dcd8a53..3f2568f 100644
--- a/Sevomin.WebFrontend.Controllers/AccountController.cs
+++ b/Sevomin.WebFrontend.Controllers/AccountController.cs
@@ -12,7 +12,7 @@ namespace Sevomin.WebFrontend.Controllers
     public class AccountController : BaseController
     {                
         public AccountController()
-            : this(new UserManager<User>(new UserStore<User>(new UsersDbContext())))
+            : this(new UserManager<User>(new UserStore<User>(SevominDbContext.Current)))
         {
         }