diff --git a/NKC_WF/ErrorPages/Oops.aspx b/NKC_WF/ErrorPages/Oops.aspx
index f27fb05..1b5ee3f 100644
--- a/NKC_WF/ErrorPages/Oops.aspx
+++ b/NKC_WF/ErrorPages/Oops.aspx
@@ -3,8 +3,10 @@
 
   <div class="row">
     <div class="col-4"></div>
-    <div class="col-4">
-      <asp:HyperLink runat="server" ID="hlDefault" NavigateUrl="../Default">Return to home page</asp:HyperLink>
+    <div class="col-4 text-center">
+      <h2>Error raised</h2>
+      <asp:HyperLink runat="server" ID="hlDefault" NavigateUrl="../Default" CssClass="btn btn-block btn-success"><i class="fa fa-home" aria-hidden="true"></i> Return to home page</asp:HyperLink>
+      <i>Error log recorded</i>: developer can access <a href="../elmah.axd">detailed information about errors here</a>.
     </div>
     <div class="col-4"></div>
   </div>
diff --git a/NKC_WF/Web.config b/NKC_WF/Web.config
index 1727c9d..6a67ed7 100644
--- a/NKC_WF/Web.config
+++ b/NKC_WF/Web.config
@@ -35,7 +35,7 @@
       <add name="ErrorMail" type="Elmah.ErrorMailModule, Elmah"/>
       <add name="ErrorFilter" type="Elmah.ErrorFilterModule, Elmah"/>
     </httpModules>
-    <customErrors mode="RemoteOnly" defaultRedirect="~/ErrorPages/Oops.aspx"/>
+    <customErrors mode="On" defaultRedirect="~/ErrorPages/Oops.aspx"/>
   </system.web>
   <appSettings>
     <!--Configurazioni generali-->
@@ -45,6 +45,7 @@
     <add key="copyRight" value="Egaltech &amp; Steamware "/>
     <add key="authSenzaDominio" value="true"/>
     <add key="_safePages" value="Test#Home#Default"/>
+    <add key="BaseUrl" value="http://IIS02/NKC"/>
     <!--area DEV/testing-->
     <add key="enableSimProd" value="true"/>
     <!--area logger-->
diff --git a/NKC_WF/WebUserControls/cmp_MU_Items.ascx b/NKC_WF/WebUserControls/cmp_MU_Items.ascx
index b81be3b..f82675b 100644
--- a/NKC_WF/WebUserControls/cmp_MU_Items.ascx
+++ b/NKC_WF/WebUserControls/cmp_MU_Items.ascx
@@ -10,7 +10,7 @@
           <Columns>
             <asp:TemplateField HeaderText="QR">
               <ItemTemplate>
-                <asp:Image runat="server" Height="64" Visible='<%# hfShowQr.Value.ToLower()=="true" %>' ImageUrl='<%# getImgUrl(Eval("ItemDtmx")) %>' />
+                <asp:Image runat="server" Height='<%# qrSize %>' Visible='<%# hfShowQr.Value.ToLower()=="true" %>' ImageUrl='<%# getImgUrl(Eval("ItemDtmx")) %>' />
               </ItemTemplate>
             </asp:TemplateField>
             <asp:BoundField DataField="ItemID" HeaderText="ItemID" InsertVisible="False" ReadOnly="True" SortExpression="ItemID" />
@@ -31,6 +31,7 @@
         </asp:ObjectDataSource>
         <asp:HiddenField ID="hfSheetID" runat="server" />
         <asp:HiddenField ID="hfShowQr" runat="server" Value="false" />
+        <asp:HiddenField ID="hfQrSize" runat="server" Value="32" />
       </div>
     </div>
   </div>
diff --git a/NKC_WF/WebUserControls/cmp_MU_Items.ascx.cs b/NKC_WF/WebUserControls/cmp_MU_Items.ascx.cs
index 48ce98a..7b0acc3 100644
--- a/NKC_WF/WebUserControls/cmp_MU_Items.ascx.cs
+++ b/NKC_WF/WebUserControls/cmp_MU_Items.ascx.cs
@@ -62,5 +62,22 @@ namespace NKC_WF.WebUserControls
     {
       grView.DataBind();
     }
+    /// <summary>
+    /// Dimensione QRCode
+    /// </summary>
+    public int qrSize
+    {
+      get
+      {
+        int answ = 32;
+        int.TryParse(hfQrSize.Value, out answ);
+        return answ;
+      }
+      set
+      {
+        hfQrSize.Value = value.ToString();
+        doUpdate();
+      }
+    }
   }
 }
\ No newline at end of file
diff --git a/NKC_WF/WebUserControls/cmp_MU_Items.ascx.designer.cs b/NKC_WF/WebUserControls/cmp_MU_Items.ascx.designer.cs
index 765ec6b..7acb48a 100644
--- a/NKC_WF/WebUserControls/cmp_MU_Items.ascx.designer.cs
+++ b/NKC_WF/WebUserControls/cmp_MU_Items.ascx.designer.cs
@@ -49,5 +49,14 @@ namespace NKC_WF.WebUserControls
     /// Per la modifica, spostare la dichiarazione di campo dal file di progettazione al file code-behind.
     /// </remarks>
     protected global::System.Web.UI.WebControls.HiddenField hfShowQr;
+
+    /// <summary>
+    /// Controllo hfQrSize.
+    /// </summary>
+    /// <remarks>
+    /// Campo generato automaticamente.
+    /// Per la modifica, spostare la dichiarazione di campo dal file di progettazione al file code-behind.
+    /// </remarks>
+    protected global::System.Web.UI.WebControls.HiddenField hfQrSize;
   }
 }
diff --git a/NKC_WF/WebUserControls/cmp_MU_bins.ascx b/NKC_WF/WebUserControls/cmp_MU_bins.ascx
index fc78380..f1030ba 100644
--- a/NKC_WF/WebUserControls/cmp_MU_bins.ascx
+++ b/NKC_WF/WebUserControls/cmp_MU_bins.ascx
@@ -16,8 +16,9 @@
           <Columns>
             <asp:TemplateField HeaderText="Cod" SortExpression="BinDtmx">
               <ItemTemplate>
-                <asp:Image runat="server" Height="64" Visible='<%# hfShowQr.Value.ToLower()=="true" %>' ImageUrl='<%# getImgUrl(Eval("BinDtmx")) %>' />
-                <b><asp:Label ID="Label1" runat="server" Text='<%# Eval("BinIndex","B{0}") %>' CssClass='<%# getCssByRatio(getRatio(Eval("TotItemLoad"),Eval("TotItem"))) %>' /></b>
+                <asp:Image runat="server" Height='<%# qrSize %>' Visible='<%# hfShowQr.Value.ToLower()=="true" %>' ImageUrl='<%# getImgUrl(Eval("BinDtmx")) %>' />
+                <b><asp:Label ID="lblBinIndex" runat="server" Text='<%# Eval("BinIndex","B{0}") %>' CssClass='<%# getCssByRatio(getRatio(Eval("TotItemLoad"),Eval("TotItem"))) %>' /></b>
+                <asp:Label ID="lblBinDtmx" runat="server" Visible='<%# hfShowQr.Value.ToLower()=="true" %>' Text='<%# Eval("BinDtmx") %>' CssClass="small" />
               </ItemTemplate>
             </asp:TemplateField>
             <asp:TemplateField HeaderText="D/T" SortExpression="TotItem">
@@ -39,6 +40,7 @@
         </asp:ObjectDataSource>
         <asp:HiddenField ID="hfBatchID" runat="server" />
         <asp:HiddenField ID="hfShowQr" runat="server" Value="false" />
+        <asp:HiddenField ID="hfQrSize" runat="server" Value="32" />
       </div>
     </div>
   </div>
diff --git a/NKC_WF/WebUserControls/cmp_MU_bins.ascx.cs b/NKC_WF/WebUserControls/cmp_MU_bins.ascx.cs
index 76657e7..3a5b60e 100644
--- a/NKC_WF/WebUserControls/cmp_MU_bins.ascx.cs
+++ b/NKC_WF/WebUserControls/cmp_MU_bins.ascx.cs
@@ -100,5 +100,22 @@ namespace NKC_WF.WebUserControls
       }
       return answ;
     }
+    /// <summary>
+    /// Dimensione QRCode
+    /// </summary>
+    public int qrSize
+    {
+      get
+      {
+        int answ = 32;
+        int.TryParse(hfQrSize.Value, out answ);
+        return answ;
+      }
+      set
+      {
+        hfQrSize.Value = value.ToString();
+        doUpdate();
+      }
+    }
   }
 }
\ No newline at end of file
diff --git a/NKC_WF/WebUserControls/cmp_MU_bins.ascx.designer.cs b/NKC_WF/WebUserControls/cmp_MU_bins.ascx.designer.cs
index d77b6b0..ba93f90 100644
--- a/NKC_WF/WebUserControls/cmp_MU_bins.ascx.designer.cs
+++ b/NKC_WF/WebUserControls/cmp_MU_bins.ascx.designer.cs
@@ -49,5 +49,14 @@ namespace NKC_WF.WebUserControls
     /// Per la modifica, spostare la dichiarazione di campo dal file di progettazione al file code-behind.
     /// </remarks>
     protected global::System.Web.UI.WebControls.HiddenField hfShowQr;
+
+    /// <summary>
+    /// Controllo hfQrSize.
+    /// </summary>
+    /// <remarks>
+    /// Campo generato automaticamente.
+    /// Per la modifica, spostare la dichiarazione di campo dal file di progettazione al file code-behind.
+    /// </remarks>
+    protected global::System.Web.UI.WebControls.HiddenField hfQrSize;
   }
 }
diff --git a/NKC_WF/WebUserControls/cmp_MU_carts.ascx b/NKC_WF/WebUserControls/cmp_MU_carts.ascx
index 01897a7..cd89b1f 100644
--- a/NKC_WF/WebUserControls/cmp_MU_carts.ascx
+++ b/NKC_WF/WebUserControls/cmp_MU_carts.ascx
@@ -16,8 +16,9 @@
           <Columns>
             <asp:TemplateField HeaderText="Cod" SortExpression="CartDtmx">
               <ItemTemplate>
-                <asp:Image runat="server" Height="64" Visible='<%# hfShowQr.Value.ToLower()=="true" %>' ImageUrl='<%# getImgUrl(Eval("CartDtmx")) %>' />
-                <b><asp:Label ID="Label1" runat="server" Text='<%# Eval("CartIndex","C{0}") %>' CssClass='<%# getCssByRatio(getRatio(Eval("TotItemLoad"),Eval("TotItem"))) %>' /></b>
+                <asp:Image runat="server" Height='<%# qrSize %>' Visible='<%# hfShowQr.Value.ToLower()=="true" %>' ImageUrl='<%# getImgUrl(Eval("CartDtmx")) %>' />
+                <b><asp:Label ID="lblCartIndex" runat="server" Text='<%# Eval("CartIndex","C{0}") %>' CssClass='<%# getCssByRatio(getRatio(Eval("TotItemLoad"),Eval("TotItem"))) %>' /></b>
+                <asp:Label ID="lblCartDtmx" runat="server" Visible='<%# hfShowQr.Value.ToLower()=="true" %>' Text='<%# Eval("CartDtmx") %>' CssClass="small" />
               </ItemTemplate>
             </asp:TemplateField>
              <asp:TemplateField HeaderText="D/T" SortExpression="TotItem">
@@ -39,6 +40,7 @@
         </asp:ObjectDataSource>
         <asp:HiddenField ID="hfBatchID" runat="server" />
         <asp:HiddenField ID="hfShowQr" runat="server" Value="false" />
+        <asp:HiddenField ID="hfQrSize" runat="server" Value="32" />
       </div>
     </div>
   </div>
diff --git a/NKC_WF/WebUserControls/cmp_MU_carts.ascx.cs b/NKC_WF/WebUserControls/cmp_MU_carts.ascx.cs
index bf7addd..81e42f7 100644
--- a/NKC_WF/WebUserControls/cmp_MU_carts.ascx.cs
+++ b/NKC_WF/WebUserControls/cmp_MU_carts.ascx.cs
@@ -100,5 +100,22 @@ namespace NKC_WF.WebUserControls
       }
       return answ;
     }
+    /// <summary>
+    /// Dimensione QRCode
+    /// </summary>
+    public int qrSize
+    {
+      get
+      {
+        int answ = 32;
+        int.TryParse(hfQrSize.Value, out answ);
+        return answ;
+      }
+      set
+      {
+        hfQrSize.Value = value.ToString();
+        doUpdate();
+      }
+    }
   }
 }
\ No newline at end of file
diff --git a/NKC_WF/WebUserControls/cmp_MU_carts.ascx.designer.cs b/NKC_WF/WebUserControls/cmp_MU_carts.ascx.designer.cs
index c83f2fe..238cb60 100644
--- a/NKC_WF/WebUserControls/cmp_MU_carts.ascx.designer.cs
+++ b/NKC_WF/WebUserControls/cmp_MU_carts.ascx.designer.cs
@@ -49,5 +49,14 @@ namespace NKC_WF.WebUserControls
     /// Per la modifica, spostare la dichiarazione di campo dal file di progettazione al file code-behind.
     /// </remarks>
     protected global::System.Web.UI.WebControls.HiddenField hfShowQr;
+
+    /// <summary>
+    /// Controllo hfQrSize.
+    /// </summary>
+    /// <remarks>
+    /// Campo generato automaticamente.
+    /// Per la modifica, spostare la dichiarazione di campo dal file di progettazione al file code-behind.
+    /// </remarks>
+    protected global::System.Web.UI.WebControls.HiddenField hfQrSize;
   }
 }
diff --git a/NKC_WF/site/BatchPreview.aspx b/NKC_WF/site/BatchPreview.aspx
index f563d1c..b946c22 100644
--- a/NKC_WF/site/BatchPreview.aspx
+++ b/NKC_WF/site/BatchPreview.aspx
@@ -10,15 +10,17 @@
   <asp:HiddenField ID="hfBatchID" runat="server" />
   <div class="row text-center small">
     <div class="col-1 pr-0 small">
-      <uc1:cmp_BP_bunkList runat="server" id="cmp_BP_bunkList" />
+      <uc1:cmp_BP_bunkList runat="server" ID="cmp_BP_bunkList" />
     </div>
     <div class="col-9 px-0">
       <h3>Batch preview</h3>
-      <uc1:cmp_slider runat="server" id="cmp_slider" />
-      <uc1:cmp_MU_svgViewer runat="server" id="cmp_MU_svgViewer" />
+      <uc1:cmp_slider runat="server" ID="cmp_slider" />
+      <uc1:cmp_MU_svgViewer runat="server" ID="cmp_MU_svgViewer" />
     </div>
     <div class="col-2 pl-0 small">
-      <uc1:cmp_BP_sheetList runat="server" id="cmp_BP_sheetList" />
+      <asp:Panel runat="server" ID="pnlSheets" Height="80em" ScrollBars="Auto">
+        <uc1:cmp_BP_sheetList runat="server" ID="cmp_BP_sheetList" />
+      </asp:Panel>
     </div>
   </div>
 </asp:Content>
diff --git a/NKC_WF/site/BatchPreview.aspx.designer.cs b/NKC_WF/site/BatchPreview.aspx.designer.cs
index e6fdb58..ec2624c 100644
--- a/NKC_WF/site/BatchPreview.aspx.designer.cs
+++ b/NKC_WF/site/BatchPreview.aspx.designer.cs
@@ -50,6 +50,15 @@ namespace NKC_WF.site
     /// </remarks>
     protected global::NKC_WF.WebUserControls.cmp_MU_svgViewer cmp_MU_svgViewer;
 
+    /// <summary>
+    /// Controllo pnlSheets.
+    /// </summary>
+    /// <remarks>
+    /// Campo generato automaticamente.
+    /// Per la modifica, spostare la dichiarazione di campo dal file di progettazione al file code-behind.
+    /// </remarks>
+    protected global::System.Web.UI.WebControls.Panel pnlSheets;
+
     /// <summary>
     /// Controllo cmp_BP_sheetList.
     /// </summary>
diff --git a/NKC_WF/site/DBG_QRCode_Unload.aspx b/NKC_WF/site/DBG_QRCode_Unload.aspx
index 9b653e3..e4469ed 100644
--- a/NKC_WF/site/DBG_QRCode_Unload.aspx
+++ b/NKC_WF/site/DBG_QRCode_Unload.aspx
@@ -8,9 +8,21 @@
   <asp:HiddenField ID="hfBatchID" runat="server" />
   <asp:HiddenField ID="hfSheetID" runat="server" />
   <div class="row">
-    <div class="col-12">
+    <div class="col-2 text-left">
+      <asp:Image runat="server" Height="64" id="imgQrLogin"/>
+      <b>LOGIN</b> Page
+    </div>
+    <div class="col-8">
       <h1 class="text-center">DEBUG UNLOAD PAGE</h1>
     </div>
+    <div class="col-2 text-right">
+      QR size
+      <asp:DropDownList runat="server" ID="ddlQrSize" AutoPostBack="True" OnSelectedIndexChanged="ddlQrSize_SelectedIndexChanged">
+        <asp:ListItem Text="Small" Value="16"></asp:ListItem>
+        <asp:ListItem Text="Medium" Value="32" Selected="True"></asp:ListItem>
+        <asp:ListItem Text="Large" Value="64"></asp:ListItem>
+      </asp:DropDownList>
+    </div>
     <div class="col-12">
       <uc1:cmp_MU_Items runat="server" ID="cmp_MU_Items" />
     </div>
diff --git a/NKC_WF/site/DBG_QRCode_Unload.aspx.cs b/NKC_WF/site/DBG_QRCode_Unload.aspx.cs
index 1779ea8..4ae89c7 100644
--- a/NKC_WF/site/DBG_QRCode_Unload.aspx.cs
+++ b/NKC_WF/site/DBG_QRCode_Unload.aspx.cs
@@ -1,4 +1,5 @@
-using System;
+using SteamWare;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Web;
@@ -48,10 +49,32 @@ namespace NKC_WF.site
       }
     }
     /// <summary>
+    /// restituisce URL immagine QRCode
+    /// </summary>
+    /// <returns></returns>
+    public string getLoginUrl()
+    {
+      string baseUrl = "https://qrcode.steamware.net/HOME/QR_site/JSON?val=";
+      string payload = "{'baseUrl':'{0}','parameters':['" + memLayer.ML.CRS("BaseUrl") + "']}";
+      string answ = $"{baseUrl}{payload}";
+      return answ;
+    }
+    protected int qrSize
+    {
+      get
+      {
+        int answ = 32;
+        int.TryParse(ddlQrSize.SelectedValue, out answ);
+        return answ;
+      }
+    }
+    /// <summary>
     /// Aggiorna componente principale e child components
     /// </summary>
     private void doUpdate()
     {
+      imgQrLogin.ImageUrl = getLoginUrl();
+      updateSize();
       //!!!FIXME!!! fare calcolo del VERO batch corrente...
       BatchId = 242; // fixed x test!
       SheetID = 770;
@@ -63,5 +86,18 @@ namespace NKC_WF.site
       cmp_MU_Items.ShowQr = true;
       cmp_MU_Items.SheetID = SheetID;
     }
+
+    protected void ddlQrSize_SelectedIndexChanged(object sender, EventArgs e)
+    {
+      updateSize();
+    }
+
+    private void updateSize()
+    {
+      imgQrLogin.Height = qrSize * 2;
+      cmp_MU_bins.qrSize = qrSize;
+      cmp_MU_carts.qrSize = qrSize;
+      cmp_MU_Items.qrSize = qrSize;
+    }
   }
 }
\ No newline at end of file
diff --git a/NKC_WF/site/DBG_QRCode_Unload.aspx.designer.cs b/NKC_WF/site/DBG_QRCode_Unload.aspx.designer.cs
index 5b5b508..29d6660 100644
--- a/NKC_WF/site/DBG_QRCode_Unload.aspx.designer.cs
+++ b/NKC_WF/site/DBG_QRCode_Unload.aspx.designer.cs
@@ -32,6 +32,24 @@ namespace NKC_WF.site
     /// </remarks>
     protected global::System.Web.UI.WebControls.HiddenField hfSheetID;
 
+    /// <summary>
+    /// Controllo imgQrLogin.
+    /// </summary>
+    /// <remarks>
+    /// Campo generato automaticamente.
+    /// Per la modifica, spostare la dichiarazione di campo dal file di progettazione al file code-behind.
+    /// </remarks>
+    protected global::System.Web.UI.WebControls.Image imgQrLogin;
+
+    /// <summary>
+    /// Controllo ddlQrSize.
+    /// </summary>
+    /// <remarks>
+    /// Campo generato automaticamente.
+    /// Per la modifica, spostare la dichiarazione di campo dal file di progettazione al file code-behind.
+    /// </remarks>
+    protected global::System.Web.UI.WebControls.DropDownList ddlQrSize;
+
     /// <summary>
     /// Controllo cmp_MU_Items.
     /// </summary>