diff --git a/EgtBEAMWALL.Core/MachGroupPanel/PartVM.vb b/EgtBEAMWALL.Core/MachGroupPanel/PartVM.vb
index 97ab4070..913121a1 100644
--- a/EgtBEAMWALL.Core/MachGroupPanel/PartVM.vb
+++ b/EgtBEAMWALL.Core/MachGroupPanel/PartVM.vb
@@ -549,7 +549,7 @@ Public MustInherit Class PartVM
    Public Sub CalcGlobalUpdate()
       m_PartM.nCALC_GlobalState = nCALC_State
       For Each Feature In FeatureVMList
-         If Feature.bDO Then Continue For
+         If Not Feature.bDO Then Continue For
          If Feature.nState > m_PartM.nCALC_GlobalState Then
             m_PartM.nCALC_GlobalState = Feature.nState
             m_PartM.nCALC_GlobalERR = Feature.nCALC_ERR
diff --git a/EgtBEAMWALL.ViewerOptimizer/EgtBEAMWALL.ViewerOptimizer.vbproj b/EgtBEAMWALL.ViewerOptimizer/EgtBEAMWALL.ViewerOptimizer.vbproj
index 3e0a7708..c55f0194 100644
--- a/EgtBEAMWALL.ViewerOptimizer/EgtBEAMWALL.ViewerOptimizer.vbproj
+++ b/EgtBEAMWALL.ViewerOptimizer/EgtBEAMWALL.ViewerOptimizer.vbproj
@@ -201,6 +201,10 @@
     <Compile Include="MachGroupPanel\MyMachGroupPanelVM.vb" />
     <Compile Include="MachGroupPanel\MyMachGroupVM.vb" />
     <Compile Include="MachGroupPanel\PartVM.vb" />
+    <Compile Include="NestingRunningWnd\NestingRunningWndV.xaml.vb">
+      <DependentUpon>NestingRunningWndV.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="NestingRunningWnd\NestingRunningWndVM.vb" />
     <Compile Include="ProjectTypeWnd\ProjectTypeWndV.xaml.vb">
       <DependentUpon>ProjectTypeWndV.xaml</DependentUpon>
     </Compile>
@@ -378,6 +382,10 @@
       <Generator>MSBuild:Compile</Generator>
       <SubType>Designer</SubType>
     </Page>
+    <Page Include="NestingRunningWnd\NestingRunningWndV.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
     <Page Include="ProjectTypeWnd\ProjectTypeWndV.xaml">
       <Generator>MSBuild:Compile</Generator>
       <SubType>Designer</SubType>
diff --git a/EgtBEAMWALL.ViewerOptimizer/MachGroupPanel/MyMachGroupVM.vb b/EgtBEAMWALL.ViewerOptimizer/MachGroupPanel/MyMachGroupVM.vb
index 0ae8e6e1..57776327 100644
--- a/EgtBEAMWALL.ViewerOptimizer/MachGroupPanel/MyMachGroupVM.vb
+++ b/EgtBEAMWALL.ViewerOptimizer/MachGroupPanel/MyMachGroupVM.vb
@@ -350,7 +350,7 @@ Public Class MyMachGroupVM
       Dim Index As Integer = Map.refMachGroupPanelVM.MachGroupVMList.IndexOf(Me)
       If Index = 0 Then
          If Map.refMachGroupPanelVM.MachGroupVMList.Count > 1 Then
-            Map.refMachGroupPanelVM.SelectedMachGroup = Map.refMachGroupPanelVM.MachGroupVMList(0)
+            Map.refMachGroupPanelVM.SelectedMachGroup = Map.refMachGroupPanelVM.MachGroupVMList(1)
          Else
             Map.refMachGroupPanelVM.SelectedMachGroup = Nothing
             EgtDraw()
diff --git a/EgtBEAMWALL.ViewerOptimizer/NestingRunningWnd/NestingRunningWndV.xaml b/EgtBEAMWALL.ViewerOptimizer/NestingRunningWnd/NestingRunningWndV.xaml
new file mode 100644
index 00000000..24457672
--- /dev/null
+++ b/EgtBEAMWALL.ViewerOptimizer/NestingRunningWnd/NestingRunningWndV.xaml
@@ -0,0 +1,37 @@
+<EgtWPFLib5:EgtCustomWindow x:Class="NestingRunningWndV"
+                            xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+                            xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+                            xmlns:EgtWPFLib5="clr-namespace:EgtWPFLib5;assembly=EgtWPFLib5"
+                            Style="{DynamicResource {x:Type EgtWPFLib5:EgtCustomWindow}}"
+                            Height="200" Width="300"
+                            IsClosable="False" IsMinimizable="False"
+                            WindowStartupLocation="CenterOwner" ShowInTaskbar="False">
+
+   <Grid>
+      <Grid.RowDefinitions>
+         <RowDefinition Height="1*"/>
+         <RowDefinition Height="Auto"/>
+         <RowDefinition Height="1*"/>
+         <RowDefinition Height="Auto"/>
+         <RowDefinition Height="1*"/>
+         <RowDefinition Height="Auto"/>
+         <RowDefinition Height="1*"/>
+      </Grid.RowDefinitions>
+      <TextBlock Grid.Row="1"
+                 Text="{Binding NestingRunning_Msg}"
+                 TextAlignment="Center"/>
+      <ProgressBar Grid.Row="3"
+                   Minimum="0"
+                   Maximum="100"
+                   Value="{Binding Progress_Value}"
+                   Height="20"
+                   Margin="40,0,40,0"/>
+      <Button Grid.Row="5" Content="Cancel"
+              IsDefault="False"
+              IsCancel="True"
+              Width="70"
+              Style="{StaticResource ToolBar_Button}"
+              Command="{Binding Cancel_Command}"/>
+   </Grid>
+
+</EgtWPFLib5:EgtCustomWindow>
diff --git a/EgtBEAMWALL.ViewerOptimizer/NestingRunningWnd/NestingRunningWndV.xaml.vb b/EgtBEAMWALL.ViewerOptimizer/NestingRunningWnd/NestingRunningWndV.xaml.vb
new file mode 100644
index 00000000..74f0adb4
--- /dev/null
+++ b/EgtBEAMWALL.ViewerOptimizer/NestingRunningWnd/NestingRunningWndV.xaml.vb
@@ -0,0 +1,22 @@
+Public Class NestingRunningWndV
+
+   Private WithEvents m_NestingRunningWndVM As NestingRunningWndVM
+
+   Sub New(Owner As Window, NestingRunningWndVM As NestingRunningWndVM)
+      MyBase.New(Owner)
+      ' This call is required by the designer.
+      InitializeComponent()
+      Me.DataContext = NestingRunningWndVM
+      ' Assegno al riferimento locale al VM il VM preso dal DataContext
+      m_NestingRunningWndVM = NestingRunningWndVM
+   End Sub
+
+   Private Sub CloseWindow(bDialogResult As Boolean) Handles m_NestingRunningWndVM.m_CloseWindow
+      Me.DialogResult = bDialogResult
+   End Sub
+
+   Private Sub Me_ContentRendered() Handles Me.ContentRendered
+      m_NestingRunningWndVM.DoNesting()
+   End Sub
+
+End Class
diff --git a/EgtBEAMWALL.ViewerOptimizer/NestingRunningWnd/NestingRunningWndVM.vb b/EgtBEAMWALL.ViewerOptimizer/NestingRunningWnd/NestingRunningWndVM.vb
new file mode 100644
index 00000000..230c3cb6
--- /dev/null
+++ b/EgtBEAMWALL.ViewerOptimizer/NestingRunningWnd/NestingRunningWndVM.vb
@@ -0,0 +1,191 @@
+Imports System.Windows.Threading
+Imports EgtBEAMWALL.Core
+Imports EgtWPFLib5
+
+Public Class NestingRunningWndVM
+   Inherits VMBase
+
+#Region "FIELDS & PROPERTIES"
+
+   Friend Event m_CloseWindow(bDialogResult As Boolean)
+
+   Private m_Waiting_Timer As New DispatcherTimer
+   Private m_TotIntervals As Integer = 0
+   Private m_Step As Double = 1
+   Private m_Progress_Value As Double = 0
+   Private m_SectionList As List(Of SParam)
+
+   Public Property Progress_Value As Double
+      Get
+         Return m_Progress_Value
+      End Get
+      Set(value As Double)
+         m_Progress_Value = value
+      End Set
+   End Property
+
+#Region "Messages"
+
+   Public ReadOnly Property NestingRunning_Msg As String
+      Get
+         Return "Nesting running..."
+      End Get
+   End Property
+
+#End Region    ' Messages
+
+   ' Definizione comandi
+   Private m_cmdCancel As ICommand
+
+#End Region    ' FIELDS & PROPERTIES
+
+   Sub New(SectionList As List(Of SParam), TimeToWait As Double)
+      m_SectionList = SectionList
+      m_TotIntervals = Math.Ceiling(TimeToWait)
+      m_Step = 100 / m_TotIntervals
+      ' avvio contatore
+      m_Waiting_Timer.Interval = TimeSpan.FromMilliseconds(1000)
+      AddHandler m_Waiting_Timer.Tick, AddressOf WaitingTimer_Tick
+      m_Waiting_Timer.Start()
+   End Sub
+
+   Private Sub WaitingTimer_Tick()
+      m_Progress_Value += m_Step
+      NotifyPropertyChanged(NameOf(Progress_Value))
+   End Sub
+
+   Friend Sub DoNesting()
+      Dim sLogPath As String = Map.refMainWindowVM.MainWindowM.sTempDir & "\RawPartLog.txt"
+      Dim dSectionTime As Double = GetMainPrivateProfileDouble(S_NEST, K_SECTIONTIME, 1)
+      Dim dPartTime As Double = GetMainPrivateProfileDouble(S_NEST, K_PARTTIME, 1)
+      ' recupero parametri di calcolo
+      Dim dRawL As Double = 0
+      Dim dRawW As Double = 0
+      Dim WhType = GetMainPrivateProfileInt(S_GENERAL, K_WAREHOUSE, 1)
+      Dim sWarehouseIniPath As String = ""
+      Dim dOffset As Double = WarehouseHelper.GetOffset(Map.refProjectVM.BTLStructureVM.nPROJTYPE)
+      Dim dStartOffset As Double = 0
+      Dim dKerf As Double = 0
+      Select Case WhType
+         Case WarehouseType.BASIC
+            Dim nQuantity As Integer = WarehouseHelper.GetQuantity(Map.refProjectVM.BTLStructureVM.nPROJTYPE)
+            If Map.refProjectVM.BTLStructureVM.nPROJTYPE = MachineType.BEAM Then
+               ' leggo lunghezza barra
+               WarehouseHelper.GetCurrentDimensions(Map.refProjectVM.BTLStructureVM.nPROJTYPE, 0, dRawL)
+               ' leggo start offset e quantity
+               dStartOffset = WarehouseHelper.GetStartOffset()
+               ' riporto la stessa lunghezza in tutte le sezioni
+               For Each Section In m_SectionList
+                  Section.dL = dRawL
+                  Section.nQuantity = nQuantity
+               Next
+            ElseIf Map.refProjectVM.BTLStructureVM.nPROJTYPE = MachineType.WALL Then
+               If Not WarehouseHelper.GetCurrentDimensions(Map.refProjectVM.BTLStructureVM.nPROJTYPE, dRawW, dRawL) Then
+                  ' riabilito interfaccia
+                  Map.refProjectVM.SetCalcRunning(False)
+                  CloseNesting()
+                  Return
+               End If
+               ' leggo kerf e quantity
+               dKerf = WarehouseHelper.GetKerf()
+               ' riporto le stesse dimensioni in tutte le sezioni
+               For Each Section In m_SectionList
+                  Section.dL = dRawL
+                  Section.dW = dRawW
+                  Section.nQuantity = nQuantity
+               Next
+            End If
+         Case WarehouseType.MEDIUM
+            Dim sCurrL As String
+            Dim nIndex As Integer = 1
+            ' aggiungo le sezioni con diverse lunghezze in base al warehouse
+            If Map.refProjectVM.BTLStructureVM.nPROJTYPE = MachineType.BEAM Then
+               ' leggo start offset 
+               dStartOffset = WarehouseHelper.GetStartOffset()
+               ' leggo lunghezza barra e quantity
+               WarehouseHelper.GetDimensionsAndQuantityForList(Map.refProjectVM.BTLStructureVM.nPROJTYPE, m_SectionList)
+            ElseIf Map.refProjectVM.BTLStructureVM.nPROJTYPE = MachineType.WALL Then
+               dKerf = WarehouseHelper.GetKerf()
+               If Not WarehouseHelper.GetDimensionsAndQuantityForList(Map.refProjectVM.BTLStructureVM.nPROJTYPE, m_SectionList) Then
+                  ' riabilito interfaccia
+                  Map.refProjectVM.SetCalcRunning(False)
+                  CloseNesting()
+                  Return
+               End If
+            End If
+      End Select
+      ' attivo loading progress
+      Map.refMyStatusBarVM.StartLoading("Nesting started", True)
+      Dim DimensionsList As New List(Of List(Of SParam))
+      ' le raggruppo per sezione
+      For Each Section In m_SectionList
+         Dim Dimension As List(Of SParam) = DimensionsList.FirstOrDefault(Function(x) x(0).SectXMat = Section.SectXMat)
+         If Not IsNothing(Dimension) Then
+            Dimension.Add(Section)
+         Else
+            DimensionsList.Add(New List(Of SParam)({Section}))
+         End If
+      Next
+      ' per ogni gruppo di sezioni
+      For Each Dimension In DimensionsList
+         'Dim SectionPartList As New List(Of BTLPartM)(Map.refProjectVM.BTLStructureVM.BTLPartVMList.Where(Function(x) x.Section = Section.SectXMat).ToList())
+         Dim SectionPartList As List(Of BTLPartM) = (From x In Map.refProjectVM.BTLStructureVM.BTLPartVMList
+                                                     Where x.Section = Dimension(0).SectXMat AndAlso x.bDO
+                                                     Select x.BTLPartM).ToList()
+         Dim nNestTime As Integer = Math.Max(5, dSectionTime) + (dPartTime * SectionPartList.Count)
+         ' passo a lua lista id pezzi da nestare
+         If Not ExecNesting(sLogPath, CurrentMachine.sMachineName, SectionPartList, Dimension, dStartOffset, dOffset, dKerf, nNestTime) Then
+            Exit For
+         End If
+      Next
+      ' update liste grezzi e pezzi della grafica
+      Map.refProjectVM.MachGroupPanelVM.RefreshMachGroupList()
+      ' disattivo loading progress
+      Map.refMyStatusBarVM.EndLoading("Nesting completed")
+      ' seleziono ultimo gruppo
+      Map.refProjectVM.MachGroupPanelVM.SelLastMachGroup()
+      ' riabilito interfaccia
+      Map.refProjectVM.SetCalcRunning(False)
+      ' fermo timer e chiudo finestra
+      CloseNesting()
+   End Sub
+
+   Private Function CloseNesting()
+      ' fermo timer e chiudo finestra
+      m_Waiting_Timer.Stop()
+      RaiseEvent m_CloseWindow(True)
+   End Function
+
+#Region "COMMANDS"
+
+#Region "Cancel"
+
+   ''' <summary>
+   ''' Returns a command that do Open.
+   ''' </summary>
+   Public ReadOnly Property Cancel_Command As ICommand
+      Get
+         If m_cmdCancel Is Nothing Then
+            m_cmdCancel = New Command(AddressOf Cancel)
+         End If
+         Return m_cmdCancel
+      End Get
+   End Property
+
+   ''' <summary>
+   ''' Execute the Open.  This method is invoked by the OpenCommand.
+   ''' </summary>
+   Friend Sub Cancel()
+      ' chiedo conferma
+      If MessageBox.Show("Are you sure you want to stop the nesting?", "Warning", MessageBoxButton.YesNo, MessageBoxImage.Warning) = MessageBoxResult.No Then Return
+      ' fermo il nesting
+      Map.refMyStatusBarVM.StopProgress()
+      '' fermo timer e chiudo finestra
+      'CloseNesting()
+   End Sub
+
+#End Region ' Cancel
+
+#End Region    ' COMMANDS
+
+End Class
diff --git a/EgtBEAMWALL.ViewerOptimizer/OptimizePanel/OptimizePanelVM.vb b/EgtBEAMWALL.ViewerOptimizer/OptimizePanel/OptimizePanelVM.vb
index b325d226..e3c53f80 100644
--- a/EgtBEAMWALL.ViewerOptimizer/OptimizePanel/OptimizePanelVM.vb
+++ b/EgtBEAMWALL.ViewerOptimizer/OptimizePanel/OptimizePanelVM.vb
@@ -61,7 +61,6 @@ Public Class OptimizePanelVM
       End Get
    End Property
 
-
 #Region "Messages"
 
    Public ReadOnly Property Optimize_Msg As String
@@ -130,102 +129,115 @@ Public Class OptimizePanelVM
       Dim sLogPath As String = Map.refMainWindowVM.MainWindowM.sTempDir & "\RawPartLog.txt"
       Dim dSectionTime As Double = GetMainPrivateProfileDouble(S_NEST, K_SECTIONTIME, 1)
       Dim dPartTime As Double = GetMainPrivateProfileDouble(S_NEST, K_PARTTIME, 1)
+      Dim dTotSectionTime As Double = 0
+      Dim dTotPartTime As Double = 0
       Dim SectionList As New List(Of SParam)
       ' disabilito interfaccia
       Map.refProjectVM.SetCalcRunning(True)
       ' se ho selezionato nest per materiale e c'è una sezione selezionata diversa da sezione nulla
       If m_SelPartType.Id = PartType.MATERIAL AndAlso Not IsNothing(Map.refProjectVM.BTLStructureVM.SelSection) AndAlso Map.refProjectVM.BTLStructureVM.SelSection.dH <> -1 Then
          SectionList.Add(New SParam(Map.refProjectVM.BTLStructureVM.SelSection, 0, 0))
+         dTotSectionTime = dSectionTime
+         dTotPartTime = dPartTime * Map.refProjectVM.BTLStructureVM.BTLPartVMList.Sum(Function(x) If(x.bDO AndAlso x.Section = SectionList(0).SectXMat, 1, 0))
       Else
          ' altrimenti prendo tutte le sezioni
-         For Each Section In Map.refProjectVM.BTLStructureVM.SectionList
-            If Section.dH = -1 Then Continue For
-            SectionList.Add(New SParam(Section, 0, 0))
+         For Each CurrSection In Map.refProjectVM.BTLStructureVM.SectionList
+            If CurrSection.dH = -1 Then Continue For
+            SectionList.Add(New SParam(CurrSection, 0, 0))
+            dTotSectionTime += dSectionTime
          Next
+         dTotPartTime = dPartTime * Map.refProjectVM.BTLStructureVM.BTLPartVMList.Sum(Function(x) If(x.bDO AndAlso SectionList.Any(Function(y) y.SectXMat = x.Section), 1, 0))
       End If
-      Dim dRawL As Double = 0
-      Dim dRawW As Double = 0
-      Dim WhType = GetMainPrivateProfileInt(S_GENERAL, K_WAREHOUSE, 1)
-      Dim sWarehouseIniPath As String = ""
-      Dim dOffset As Double = WarehouseHelper.GetOffset(Map.refProjectVM.BTLStructureVM.nPROJTYPE)
-      Dim dStartOffset As Double = 0
-      Dim dKerf As Double = 0
-      Select Case WhType
-         Case WarehouseType.BASIC
-            Dim nQuantity As Integer = WarehouseHelper.GetQuantity(Map.refProjectVM.BTLStructureVM.nPROJTYPE)
-            If Map.refProjectVM.BTLStructureVM.nPROJTYPE = MachineType.BEAM Then
-               ' leggo lunghezza barra
-               WarehouseHelper.GetCurrentDimensions(Map.refProjectVM.BTLStructureVM.nPROJTYPE, 0, dRawL)
-               ' leggo start offset e quantity
-               dStartOffset = WarehouseHelper.GetStartOffset()
-               ' riporto la stessa lunghezza in tutte le sezioni
-               For Each Section In SectionList
-                  Section.dL = dRawL
-                  Section.nQuantity = nQuantity
-               Next
-            ElseIf Map.refProjectVM.BTLStructureVM.nPROJTYPE = MachineType.WALL Then
-               If Not WarehouseHelper.GetCurrentDimensions(Map.refProjectVM.BTLStructureVM.nPROJTYPE, dRawW, dRawL) Then
-                  ' riabilito interfaccia
-                  Map.refProjectVM.SetCalcRunning(False)
-                  Return
-               End If
-               ' leggo kerf e quantity
-               dKerf = WarehouseHelper.GetKerf()
-               ' riporto le stesse dimensioni in tutte le sezioni
-               For Each Section In SectionList
-                  Section.dL = dRawL
-                  Section.dW = dRawW
-                  Section.nQuantity = nQuantity
-               Next
-            End If
-         Case WarehouseType.MEDIUM
-            Dim sCurrL As String
-            Dim nIndex As Integer = 1
-            ' aggiungo le sezioni con diverse lunghezze in base al warehouse
-            If Map.refProjectVM.BTLStructureVM.nPROJTYPE = MachineType.BEAM Then
-               ' leggo start offset 
-               dStartOffset = WarehouseHelper.GetStartOffset()
-               ' leggo lunghezza barra e quantity
-               WarehouseHelper.GetDimensionsAndQuantityForList(Map.refProjectVM.BTLStructureVM.nPROJTYPE, SectionList)
-            ElseIf Map.refProjectVM.BTLStructureVM.nPROJTYPE = MachineType.WALL Then
-               dKerf = WarehouseHelper.GetKerf()
-               If Not WarehouseHelper.GetDimensionsAndQuantityForList(Map.refProjectVM.BTLStructureVM.nPROJTYPE, SectionList) Then
-                  ' riabilito interfaccia
-                  Map.refProjectVM.SetCalcRunning(False)
-                  Return
-               End If
-            End If
-      End Select
-      ' attivo loading progress
-      Map.refMyStatusBarVM.StartLoading("Nesting started", True)
-      Dim DimensionsList As New List(Of List(Of SParam))
-      ' le raggruppo per sezione
-      For Each Section In SectionList
-         Dim Dimension As List(Of SParam) = DimensionsList.FirstOrDefault(Function(x) x(0).SectXMat = Section.SectXMat)
-         If Not IsNothing(Dimension) Then
-            Dimension.Add(Section)
-         Else
-            DimensionsList.Add(New List(Of SParam)({Section}))
-         End If
-      Next
-      ' per ogni gruppo di sezioni
-      For Each Dimension In DimensionsList
-         'Dim SectionPartList As New List(Of BTLPartM)(Map.refProjectVM.BTLStructureVM.BTLPartVMList.Where(Function(x) x.Section = Section.SectXMat).ToList())
-         Dim SectionPartList As List(Of BTLPartM) = (From x In Map.refProjectVM.BTLStructureVM.BTLPartVMList
-                                                     Where x.Section = Dimension(0).SectXMat AndAlso x.bDO
-                                                     Select x.BTLPartM).ToList()
-         Dim nNestTime As Integer = Math.Max(5, dSectionTime) + (dPartTime * SectionPartList.Count)
-         ' passo a lua lista id pezzi da nestare
-         ExecNesting(sLogPath, CurrentMachine.sMachineName, SectionPartList, Dimension, dStartOffset, dOffset, dKerf, nNestTime)
-      Next
-      ' update liste grezzi e pezzi della grafica
-      Map.refProjectVM.MachGroupPanelVM.RefreshMachGroupList()
-      ' disattivo loading progress
-      Map.refMyStatusBarVM.EndLoading("Nesting completed")
-      ' seleziono ultimo gruppo
-      Map.refProjectVM.MachGroupPanelVM.SelLastMachGroup()
-      ' riabilito interfaccia
-      Map.refProjectVM.SetCalcRunning(False)
+      ' apro finestra di attesa nesting
+      Dim NestingRunninWndVM As New NestingRunningWndVM(SectionList, dTotSectionTime + dTotPartTime)
+      Dim NestingRunningWnd As New NestingRunningWndV(Application.Current.MainWindow, NestingRunninWndVM)
+      NestingRunningWnd.ShowDialog()
+      '' recupero parametri di calcolo
+      'Dim dRawL As Double = 0
+      'Dim dRawW As Double = 0
+      'Dim WhType = GetMainPrivateProfileInt(S_GENERAL, K_WAREHOUSE, 1)
+      'Dim sWarehouseIniPath As String = ""
+      'Dim dOffset As Double = WarehouseHelper.GetOffset(Map.refProjectVM.BTLStructureVM.nPROJTYPE)
+      'Dim dStartOffset As Double = 0
+      'Dim dKerf As Double = 0
+      'Select Case WhType
+      '   Case WarehouseType.BASIC
+      '      Dim nQuantity As Integer = WarehouseHelper.GetQuantity(Map.refProjectVM.BTLStructureVM.nPROJTYPE)
+      '      If Map.refProjectVM.BTLStructureVM.nPROJTYPE = MachineType.BEAM Then
+      '         ' leggo lunghezza barra
+      '         WarehouseHelper.GetCurrentDimensions(Map.refProjectVM.BTLStructureVM.nPROJTYPE, 0, dRawL)
+      '         ' leggo start offset e quantity
+      '         dStartOffset = WarehouseHelper.GetStartOffset()
+      '         ' riporto la stessa lunghezza in tutte le sezioni
+      '         For Each Section In SectionList
+      '            Section.dL = dRawL
+      '            Section.nQuantity = nQuantity
+      '         Next
+      '      ElseIf Map.refProjectVM.BTLStructureVM.nPROJTYPE = MachineType.WALL Then
+      '         If Not WarehouseHelper.GetCurrentDimensions(Map.refProjectVM.BTLStructureVM.nPROJTYPE, dRawW, dRawL) Then
+      '            ' riabilito interfaccia
+      '            Map.refProjectVM.SetCalcRunning(False)
+      '            Return
+      '         End If
+      '         ' leggo kerf e quantity
+      '         dKerf = WarehouseHelper.GetKerf()
+      '         ' riporto le stesse dimensioni in tutte le sezioni
+      '         For Each Section In SectionList
+      '            Section.dL = dRawL
+      '            Section.dW = dRawW
+      '            Section.nQuantity = nQuantity
+      '         Next
+      '      End If
+      '   Case WarehouseType.MEDIUM
+      '      Dim sCurrL As String
+      '      Dim nIndex As Integer = 1
+      '      ' aggiungo le sezioni con diverse lunghezze in base al warehouse
+      '      If Map.refProjectVM.BTLStructureVM.nPROJTYPE = MachineType.BEAM Then
+      '         ' leggo start offset 
+      '         dStartOffset = WarehouseHelper.GetStartOffset()
+      '         ' leggo lunghezza barra e quantity
+      '         WarehouseHelper.GetDimensionsAndQuantityForList(Map.refProjectVM.BTLStructureVM.nPROJTYPE, SectionList)
+      '      ElseIf Map.refProjectVM.BTLStructureVM.nPROJTYPE = MachineType.WALL Then
+      '         dKerf = WarehouseHelper.GetKerf()
+      '         If Not WarehouseHelper.GetDimensionsAndQuantityForList(Map.refProjectVM.BTLStructureVM.nPROJTYPE, SectionList) Then
+      '            ' riabilito interfaccia
+      '            Map.refProjectVM.SetCalcRunning(False)
+      '            Return
+      '         End If
+      '      End If
+      'End Select
+      '' attivo loading progress
+      'Map.refMyStatusBarVM.StartLoading("Nesting started", True)
+      'Dim DimensionsList As New List(Of List(Of SParam))
+      '' le raggruppo per sezione
+      'For Each Section In SectionList
+      '   Dim Dimension As List(Of SParam) = DimensionsList.FirstOrDefault(Function(x) x(0).SectXMat = Section.SectXMat)
+      '   If Not IsNothing(Dimension) Then
+      '      Dimension.Add(Section)
+      '   Else
+      '      DimensionsList.Add(New List(Of SParam)({Section}))
+      '   End If
+      'Next
+      '' per ogni gruppo di sezioni
+      'For Each Dimension In DimensionsList
+      '   'Dim SectionPartList As New List(Of BTLPartM)(Map.refProjectVM.BTLStructureVM.BTLPartVMList.Where(Function(x) x.Section = Section.SectXMat).ToList())
+      '   Dim SectionPartList As List(Of BTLPartM) = (From x In Map.refProjectVM.BTLStructureVM.BTLPartVMList
+      '                                               Where x.Section = Dimension(0).SectXMat AndAlso x.bDO
+      '                                               Select x.BTLPartM).ToList()
+      '   Dim nNestTime As Integer = Math.Max(5, dSectionTime) + (dPartTime * SectionPartList.Count)
+      '   ' passo a lua lista id pezzi da nestare
+      '   ExecNesting(sLogPath, CurrentMachine.sMachineName, SectionPartList, Dimension, dStartOffset, dOffset, dKerf, nNestTime)
+      'Next
+      '' update liste grezzi e pezzi della grafica
+      'Map.refProjectVM.MachGroupPanelVM.RefreshMachGroupList()
+      '' disattivo loading progress
+      'Map.refMyStatusBarVM.EndLoading("Nesting completed")
+      '' seleziono ultimo gruppo
+      'Map.refProjectVM.MachGroupPanelVM.SelLastMachGroup()
+      '' riabilito interfaccia
+      'Map.refProjectVM.SetCalcRunning(False)
+      '' chiudo finestra di attesa nesting
+      'NestingRunninWndVM.Cancel()
    End Sub
 
 #End Region ' Optimize
diff --git a/EgtBEAMWALL.ViewerOptimizer/StatusBar/MyStatusBarVM.vb b/EgtBEAMWALL.ViewerOptimizer/StatusBar/MyStatusBarVM.vb
index 5bf0b586..ba2970ba 100644
--- a/EgtBEAMWALL.ViewerOptimizer/StatusBar/MyStatusBarVM.vb
+++ b/EgtBEAMWALL.ViewerOptimizer/StatusBar/MyStatusBarVM.vb
@@ -100,7 +100,7 @@ Public Class MyStatusBarVM
    ''' <summary>
    ''' Execute the Exec.  This method is invoked by the ExecCommand.
    ''' </summary>
-   Public Sub StopProgress(ByVal param As Object)
+   Public Sub StopProgress()
       m_bStopProgress = True
    End Sub
 
diff --git a/EgtBEAMWALL.ViewerOptimizer/WarehouseWnd/WarehouseHelper.vb b/EgtBEAMWALL.ViewerOptimizer/WarehouseWnd/WarehouseHelper.vb
index 85fc4980..d4e72c32 100644
--- a/EgtBEAMWALL.ViewerOptimizer/WarehouseWnd/WarehouseHelper.vb
+++ b/EgtBEAMWALL.ViewerOptimizer/WarehouseWnd/WarehouseHelper.vb
@@ -144,10 +144,6 @@ Module WarehouseHelper
          End Select
          nIndex += 1
       End While
-      'If CheckList.Count <> SectionList.Count Then Return False
-      'For i = 0 To CheckList.Count - 1
-      '   If Not CheckList.Contains(i) Then Return False
-      'Next
       SectionList = NewSectionList
       Return True
    End Function