diff --git a/Disposition.cpp b/Disposition.cpp
index ed8e763..616a827 100644
--- a/Disposition.cpp
+++ b/Disposition.cpp
@@ -86,6 +86,8 @@ Disposition::Clone( void) const
   // eseguo copia dei dati
    if ( pDisp != nullptr) {
       try { pDisp->m_sTabName = m_sTabName ;
+            pDisp->m_pMchMgr = m_pMchMgr ;
+            pDisp->m_nPhase = m_nPhase ;
             pDisp->m_ptRef1 = m_ptRef1 ;
             pDisp->m_b3Area1 = m_b3Area1 ;
             pDisp->m_dAreaOffset = m_dAreaOffset ;
@@ -1205,6 +1207,23 @@ Disposition::InsertMoveInfoInList( int nRawId, int nType, const Point3d& ptP, in
    return true ;
 }
 
+//----------------------------------------------------------------------------
+bool
+Disposition::UpdateRawPartId( int nRawId, int nNewRawId)
+{
+  // aggiorno i movimenti registrati per questo grezzo
+   while ( true) {
+      auto iIter = find_if( m_vMvrData.begin(), m_vMvrData.end(),
+                            [ nRawId]( const MoveRawData& Mrv) 
+                            { return ( Mrv.nRawId == nRawId) ; }) ;
+      if ( iIter == m_vMvrData.end())
+         break ;
+      else
+         iIter->nRawId = nNewRawId ;
+   }
+   return true ;
+}
+
 //----------------------------------------------------------------------------
 bool
 Disposition::RemoveRawPart( int nRawId)
diff --git a/Disposition.h b/Disposition.h
index 7ce4cd9..1accd12 100644
--- a/Disposition.h
+++ b/Disposition.h
@@ -102,6 +102,7 @@ class Disposition : public Operation
       bool MoveRawPart( int nRawId, const Vector3d& vtMove) ;
       bool RotateRawPart( int nRawId, const Vector3d& vtAx, double dAngRotDeg) ;
       bool ApplyRotationToRawPart( int nRawId, double dAngCDeg, double dAngADeg, double dAngC1Deg, bool bAddToList = true) ;
+      bool UpdateRawPartId( int nRawId, int nNewRawId) ;
       bool RemoveRawPart( int nRawId) ;
       bool GetFixtureData( int nInd, std::string& sName, int& nId, Point3d& ptPos,
                            double& dAngDeg, double& dMov) const ;
diff --git a/EgtMachKernel.rc b/EgtMachKernel.rc
index 511367b..0d7108e 100644
Binary files a/EgtMachKernel.rc and b/EgtMachKernel.rc differ
diff --git a/MachMgr.h b/MachMgr.h
index 45469e3..33dea73 100644
--- a/MachMgr.h
+++ b/MachMgr.h
@@ -1,7 +1,7 @@
 //----------------------------------------------------------------------------
-//  EgalTech 2015-2022
+//  EgalTech 2015-2023
 //----------------------------------------------------------------------------
-// File : MachMgr.h           Data : 21.09.22          Versione : 2.4i4
+// File : MachMgr.h           Data : 25.08.23          Versione : 2.5h3
 // Contenuto : Dichiarazione della classe MachMgr.
 //
 //
@@ -11,6 +11,7 @@
 //             17.08.20 DS Aggiunte GetAxisMin e GetAxisMax.
 //             17.03.21 DS Aggiunte funzioni per import/export utensili.
 //             21.09.22 DS Aggiunta GetAxisOffset.
+//             25.08.23 DS Aggiunta CopyMachGroup.
 //
 //----------------------------------------------------------------------------
 
@@ -95,6 +96,7 @@ class MachMgr : public IMachMgr
       int  GetPrevMachGroup( int nId) const override ;
       bool GetMachGroupNewName( std::string& sName) const override ;
       int  AddMachGroup( const std::string& sName, const std::string& sMachineName) override ;
+      int  CopyMachGroup( const std::string& sSouName, const std::string& sName) override ;
       bool RemoveMachGroup( int nId) override ;
       std::string GetMachGroupName( int nId) const override ;
       std::string GetMachGroupMachineName( int nId) const override ;
diff --git a/MachMgrMachGroups.cpp b/MachMgrMachGroups.cpp
index 217076a..d0fb732 100644
--- a/MachMgrMachGroups.cpp
+++ b/MachMgrMachGroups.cpp
@@ -182,6 +182,52 @@ MachMgr::AddMachGroup( const string& sName, const string& sMachineName)
    return nNewId ;
 }
 
+//----------------------------------------------------------------------------
+int
+MachMgr::CopyMachGroup( const string& sSouName, const string& sName)
+{
+  // recupero il gruppo sorgente
+   int nSouMGrpId = GetMachGroupId( sSouName) ;
+   if ( nSouMGrpId == GDB_ID_NULL)
+      return GDB_ID_NULL ;
+  // verifico esista la sua macchina
+   string sMachineName ;
+   m_pGeomDB->GetInfo( nSouMGrpId, MACH_MACHINE_KEY, sMachineName) ;
+   if ( sMachineName.empty()  ||  ! LoadMachine( sMachineName))
+      return GDB_ID_NULL ;
+  // verifico nome nuovo gruppo (non deve essere vuoto e non deve esserci già un gruppo con questo nome)
+   if ( &sName == nullptr  ||  sName.empty()  ||  GetMachGroupId( sName) != GDB_ID_NULL)
+      return GDB_ID_NULL ;
+  // reset gruppo corrente
+   ResetCurrMachGroup() ;
+  // eseguo la copia del gruppo sorgente e la metto in coda
+   int nNewMGrpId = m_pGeomDB->Copy( nSouMGrpId, GDB_ID_NULL, m_nMachBaseId) ;
+   if ( nNewMGrpId == GDB_ID_NULL)
+      return GDB_ID_NULL ;
+  // assegno il nome
+   m_pGeomDB->SetName( nNewMGrpId, sName) ;
+  // converto opportunamente gli indicativi dei grezzi nelle disposizioni
+   int nSouRawPartId = m_pGeomDB->GetFirstGroupInGroup( m_pGeomDB->GetFirstNameInGroup( nSouMGrpId, MACH_RAW_GROUP)) ;
+   int nNewRawPartId = m_pGeomDB->GetFirstGroupInGroup( m_pGeomDB->GetFirstNameInGroup( nNewMGrpId, MACH_RAW_GROUP)) ;
+   while ( nSouRawPartId != GDB_ID_NULL  &&  nNewRawPartId != GDB_ID_NULL) {
+     // ciclo sulle disposizioni del nuovo gruppo di lavoro
+      int nOperId = m_pGeomDB->GetFirstGroupInGroup( m_pGeomDB->GetFirstNameInGroup( nNewMGrpId, MACH_OPER_GROUP)) ;
+      while ( nOperId != GDB_ID_NULL) {
+         Disposition* pDisp = GetDisposition( m_pGeomDB->GetUserObj( nOperId)) ;
+         if ( pDisp != nullptr)
+            pDisp->UpdateRawPartId( nSouRawPartId, nNewRawPartId) ;
+         nOperId = m_pGeomDB->GetNextGroup( nOperId) ;
+      }
+     // passo alla coppia successiva
+      nSouRawPartId = m_pGeomDB->GetNextGroup( nSouRawPartId) ;
+      nNewRawPartId = m_pGeomDB->GetNextGroup( nNewRawPartId) ;
+   }
+  // lo rendo corrente
+   SetCurrMachGroup( nNewMGrpId) ;
+  // restituisco l'identificativo del gruppo
+   return nNewMGrpId ;
+}
+
 //----------------------------------------------------------------------------
 bool
 MachMgr::RemoveMachGroup( int nId)
@@ -298,14 +344,14 @@ MachMgr::GetMachGroupId( const string& sName) const
 {
   // verifica dei parametri
    if ( &sName == nullptr  ||  sName.empty())
-      return false ;
+      return GDB_ID_NULL ;
   // verifica del gruppo base per le lavorazioni
    if ( ! VerifyMachBase())
-      return false ;
+      return GDB_ID_NULL ;
   // recupero l'identificativo del gruppo con il nome indicato
    PtrOwner<IGdbIterator> pIter( CreateGdbIterator( m_pGeomDB)) ;
    if ( IsNull( pIter))
-      return false ;
+      return GDB_ID_NULL ;
    bool bIter = pIter->GoToFirstGroupInGroup( m_nMachBaseId) ;
    while( bIter) {
      // verifico il nome