diff --git a/CompoLib/ParametricCompoVM.vb b/CompoLib/ParametricCompoVM.vb
new file mode 100644
index 0000000..95fe587
--- /dev/null
+++ b/CompoLib/ParametricCompoVM.vb
@@ -0,0 +1,131 @@
+Imports System.IO
+Imports System.Windows.Forms.AxHost
+Imports EgtUILib.EgtInterface
+Imports EgtWPFLib5
+
+Public Class ParametricCompoVM
+   Inherits SceneUserControlVM
+
+   Public Enum ParamType As Integer
+      BOOL = 1
+      INT = 2
+      LEN = 3
+      DOUB = 4
+      STR = 5
+   End Enum
+
+   Private Const LUA_CMP_VARS As String = "CMP"
+   Friend Const LUA_VALUE As String = LUA_CMP_VARS & ".V"
+   Const LUA_NAME As String = LUA_CMP_VARS & ".N"
+   Const LUA_TYPE As String = LUA_CMP_VARS & ".T"
+
+   Private sLuaPath As String = String.Empty
+
+   Sub New(sFile As String)
+      ' Recupero path cartella che contiene i componenti
+      GetMainPrivateProfileString(K_COMPO, COMPO_DIR, "", sLuaPath)
+      sLuaPath &= sFile
+      LoadParamList()
+      ' aggiorno visualizzazione
+      EgtSetView(VT.TOP, False)
+      EgtZoom(ZM.ALL)
+   End Sub
+
+   Public Overrides Sub LoadParamList()
+      ParamList.Clear()
+      EgtLuaExecFile(sLuaPath)
+      Dim sPar As String = "0"
+      EgtLuaGetGlobStringVar("CMP.Npar", sPar)
+      Dim nPar As Integer = CInt(sPar)
+      ParamList.Add(New _TextBlockParam("Messaggio", "RETTANGOLO", Visibility.Visible))
+      'ParamList.Add(New _TextBoxParam("L", "300", Visibility.Visible))
+      'ParamList.Add(New _TextBoxParam("H", "200", Visibility.Visible))
+      ' Pulisco lista variabili
+      ' Recupero nome, tipo e valore delle variabili globali
+      For i As Integer = 1 To nPar
+         Dim NewCompo As GenericParam = Nothing
+         If NameTypeValueFromLua(i, NewCompo) Then
+            ParamList.Add(NewCompo)
+         End If
+      Next
+   End Sub
+
+   Private Sub ExecLua()
+      '' recupero i valori nelle box
+      'Dim l_TextBox As _TextBoxParam = DirectCast(ParamList(1), _TextBoxParam)
+      'Dim h_TextBox As _TextBoxParam = DirectCast(ParamList(2), _TextBoxParam)
+      '' verifico che siano validi
+      'If String.IsNullOrEmpty(l_TextBox.sValue) Then l_TextBox.sValue = "0"
+      'If String.IsNullOrEmpty(h_TextBox.sValue) Then h_TextBox.sValue = "0"
+
+      Dim nVeinCtx As Integer = Map.refSceneHostVM.MainScene.GetCtx()
+      If Not File.Exists(sLuaPath) Then
+         EgtOutLog("Matching error: missing file (" & sLuaPath & ")")
+         Return
+      End If
+      ' Parsing
+      EgtLuaExecFile(sLuaPath)
+      EgtSetCurrentContext(nVeinCtx)
+      For Index As Integer = 0 To ParamList.Count - 1
+         If TypeOf ParamList(Index) Is _TextBoxParam Then
+            Dim _TextBox As _TextBoxParam = DirectCast(ParamList(Index), _TextBoxParam)
+            EgtLuaSetGlobNumVar("CMP.V" & Index, CDbl(_TextBox.sValue))
+         ElseIf TypeOf ParamList(Index) Is _CheckBoxParam Then
+            Dim _CheckBox As _CheckBoxParam = DirectCast(ParamList(Index), _CheckBoxParam)
+            EgtLuaSetGlobBoolVar("CMP.V" & Index, _CheckBox.IsChecked)
+         End If
+      Next
+      EgtLuaExecLine("CMP_Draw" & "(true)")
+      EgtLuaResetGlobVar("CMP")
+   End Sub
+
+   Public Overrides Sub Conferma()
+   End Sub
+
+   Public Overrides Sub Annulla()
+   End Sub
+
+   Public Overrides Sub ShowPreview()
+      ExecLua()
+      EgtDraw()
+   End Sub
+
+   Private Sub Close()
+   End Sub
+
+   Private Function NameTypeValueFromLua(nInd As Integer, ByRef Param As GenericParam) As Boolean
+      Dim bOk As Boolean = True
+      Dim sName As String = String.Empty
+      Dim nType As Integer = 0
+      bOk = bOk AndAlso EgtLuaGetGlobStringVar(LUA_NAME & nInd.ToString(), sName)
+      bOk = bOk AndAlso EgtLuaGetGlobIntVar(LUA_TYPE & nInd.ToString(), nType)
+      Return bOk AndAlso FromLua(nInd, sName, nType, Param)
+   End Function
+
+   Private Function FromLua(nInd As Integer, sName As String, nType As Integer, ByRef Param As GenericParam) As Boolean
+      Select Case nType
+         Case ParamType.BOOL
+            Dim Compo As New _CheckBoxParam(sName, ParamType.BOOL)
+            Param = Compo
+            Return EgtLuaGetGlobBoolVar(LUA_VALUE & nInd.ToString(), Compo.IsChecked)
+         Case ParamType.INT
+            Dim Compo As New _TextBoxParam(sName, ParamType.INT)
+            Param = Compo
+            Return EgtLuaGetGlobIntVar(LUA_VALUE & nInd.ToString(), Compo.sValue)
+         Case ParamType.LEN
+            Dim Compo As New _TextBoxParam(sName, ParamType.LEN)
+            Param = Compo
+            Return EgtLuaGetGlobNumVar(LUA_VALUE & nInd.ToString(), Compo.sValue)
+         Case ParamType.DOUB
+            Dim Compo As New _TextBoxParam(sName, ParamType.DOUB)
+            Param = Compo
+            Return EgtLuaGetGlobNumVar(LUA_VALUE & nInd.ToString(), Compo.sValue)
+         Case ParamType.STR
+            Dim Compo As New _TextBoxParam(sName, ParamType.STR)
+            Param = Compo
+            Return EgtLuaGetGlobStringVar(LUA_VALUE & nInd.ToString(), Compo.sValue)
+      End Select
+      Return False
+   End Function
+
+End Class
\ No newline at end of file
diff --git a/Constants/ConstGen.vb b/Constants/ConstGen.vb
index 0c173b2..cd3d415 100644
--- a/Constants/ConstGen.vb
+++ b/Constants/ConstGen.vb
@@ -32,6 +32,8 @@
    Public Const MACHINES_DFL_DIR As String = "Machines"
    ' Sottodirettorio di default per toolmakers
    Public Const TOOLMAKERS_DFL_DIR As String = "ToolMakers"
+   ' Sottodirettorio di configurazione
+   Public Const COMPO_DIR As String = "Compo_Dir"
 
    ' Sottodirettorio del Vein 3D
    Public Const VEIND3D_DIR As String = "Vein3D_Dir"
diff --git a/Constants/ConstIni.vb b/Constants/ConstIni.vb
index 5357d2d..ff21787 100644
--- a/Constants/ConstIni.vb
+++ b/Constants/ConstIni.vb
@@ -7,6 +7,7 @@
    Public Const K_LINEWIDTH As String = "LineWidth"
    Public Const K_CUSTOMCOLORS As String = "CustomColors"
    Public Const K_VEIND3D As String = "Vein3D"
+   Public Const K_COMPO As String = "Compo"
    Public Const K_THEMA As String = "Thema"
    Public Const K_LASTNGEDIR As String = "LastNgeDir"
    Public Const K_LASTIMPDIR As String = "LastImpDir"
diff --git a/EgtStone3D.vbproj b/EgtStone3D.vbproj
index 5fd48ee..b548e23 100644
--- a/EgtStone3D.vbproj
+++ b/EgtStone3D.vbproj
@@ -106,6 +106,7 @@
     <Compile Include="AboutBoxWindow\AboutBoxV.xaml.vb">
       <DependentUpon>AboutBoxV.xaml</DependentUpon>
     </Compile>
+    <Compile Include="CompoLib\ParametricCompoVM.vb" />
     <Compile Include="Constants\ConstEgtStone3D.vb" />
     <Compile Include="EgtColorPicker\EgtColorPickerV.xaml.vb">
       <DependentUpon>EgtColorPickerV.xaml</DependentUpon>
diff --git a/SceneButton/SceneButtonV.xaml.vb b/SceneButton/SceneButtonV.xaml.vb
index 2417d65..4b65cde 100644
--- a/SceneButton/SceneButtonV.xaml.vb
+++ b/SceneButton/SceneButtonV.xaml.vb
@@ -9,6 +9,7 @@
    Public m_RotateUC As SceneUserControlV
    Public m_MoveUC As SceneUserControlV
    Public m_PanelUC As SceneUserControlV
+   Public m_ParametricCompoUC As SceneUserControlV
 
 #End Region    ' Fields & Properties
 
@@ -112,6 +113,25 @@
       m_PanelUC = Nothing
    End Sub
 
+   Public Sub LoadParametricCompoUC(sFileName As String)
+      If IsNothing(m_ParametricCompoUC) Then
+         m_ParametricCompoUC = New SceneUserControlV
+         Dim m_ParametricCompoVM As New ParametricCompoVM(sFileName)
+         m_ParametricCompoUC.DataContext = m_ParametricCompoVM
+         Grid.SetColumn(m_ParametricCompoUC, 0)
+         Grid.SetRow(m_ParametricCompoUC, 0)
+         Grid.SetColumnSpan(m_ParametricCompoUC, 2)
+         Grid.SetRowSpan(m_ParametricCompoUC, 3)
+         MainGrid.Children.Add(m_ParametricCompoUC)
+      End If
+   End Sub
+
+   Public Sub RemoveParametricCompoUC()
+      MainGrid.Children.Remove(m_ParametricCompoUC)
+      m_ParametricCompoUC = Nothing
+   End Sub
+
+
 #End Region    ' Methods
 
 End Class
diff --git a/SceneButton/SceneButtonVM.vb b/SceneButton/SceneButtonVM.vb
index 7f053e6..1980841 100644
--- a/SceneButton/SceneButtonVM.vb
+++ b/SceneButton/SceneButtonVM.vb
@@ -400,8 +400,7 @@ Module SceneCmd
 #Region "METHODS"
 
    Public Sub Exec(Flag)
-      Dim _SceneHostVM As SceneHostVM = DirectCast(Map.refSceneHostV.DataContext, SceneHostVM)
-      Dim nVeinCtx As Integer = _SceneHostVM.MainScene.GetCtx()
+      Dim nVeinCtx As Integer = Map.refSceneHostVM.MainScene.GetCtx()
       Select Case Flag
          Case EGT_AUTOPAIR
             EgtSetCurrentContext(nVeinCtx)
@@ -436,6 +435,10 @@ Module SceneCmd
             ExportProjectNge()
          Case "Delete"
             SolidManagerM.Delete(Map.refSceneHostVM.m_nIdPart)
+         Case "Rettangolo"
+            Map.refSceneButtonV.LoadParametricCompoUC("Rettangolo" & ".lua")
+         Case "Poligono"
+            Map.refSceneButtonV.LoadParametricCompoUC("Poligono" & ".lua")
          Case Else
             Dim x As Boolean = False
       End Select
diff --git a/SceneHost/SceneHostV.xaml.vb b/SceneHost/SceneHostV.xaml.vb
index 2a69485..4c192bf 100644
--- a/SceneHost/SceneHostV.xaml.vb
+++ b/SceneHost/SceneHostV.xaml.vb
@@ -1,6 +1,4 @@
-Imports EgtUILib
-Imports EgtUILib.EgtInterface
-Imports EgtWPFLib5
+Imports EgtUILib.EgtInterface
 
 Public Class SceneHostV
 
diff --git a/SceneUserControl/SceneUserControlVM.vb b/SceneUserControl/SceneUserControlVM.vb
index 41711a7..41c529e 100644
--- a/SceneUserControl/SceneUserControlVM.vb
+++ b/SceneUserControl/SceneUserControlVM.vb
@@ -372,7 +372,6 @@ End Class
 Public Class _CheckBoxParam
    Inherits GenericParam
 
-
 #Region "FIELDS & PROPERTIES"
 
    Public Event CheckChanged(sender As Object, checked As Boolean)