diff --git a/EXE_GdbModifyVol.cpp b/EXE_GdbModifyVol.cpp
index bc106f1..ab9f6db 100644
--- a/EXE_GdbModifyVol.cpp
+++ b/EXE_GdbModifyVol.cpp
@@ -161,13 +161,13 @@ ExeRemoveVolZmapPart( int nId, int nPart)
 
 //----------------------------------------------------------------------------
 bool
-ExeVolZmapSetStdTool( int nId, const string& sToolName, double dLen, double dDiam, double dCornR)
+ExeVolZmapSetStdTool( int nId, const string& sToolName, double dLen, double dDiam, double dCornR, int nFlag)
 {
    IGeomDB* pGeomDB = GetCurrGeomDB() ;
    VERIFY_GEOMDB( pGeomDB, false)
   // recupero lo Zmap e assegno i dati dell'utensile
    IVolZmap* pVZM = GetVolZmap( pGeomDB->GetGeoObj( nId)) ;
-   bool bOk = ( pVZM != nullptr  &&  pVZM->SetStdTool( sToolName, dLen, 0.5 * dDiam, dCornR)) ;
+   bool bOk = ( pVZM != nullptr  &&  pVZM->SetStdTool( sToolName, dLen, 0.5 * dDiam, dCornR, nFlag)) ;
    ExeSetModified() ;
   // se richiesto, salvo il comando Lua equivalente
    if ( IsCmdLog()) {
@@ -175,7 +175,8 @@ ExeVolZmapSetStdTool( int nId, const string& sToolName, double dLen, double dDia
                                               sToolName + "," +
                                               ToString( dLen) + "," +
                                               ToString( dDiam) + "," +
-                                              ToString( dCornR) + ")" +
+                                              ToString( dCornR) + "," +
+                                              ToString( nFlag) + ")" +
                     " -- Ok=" + ToString( bOk) ;
       LOG_INFO( GetCmdLogger(), sLua.c_str()) ;
    }
@@ -186,14 +187,14 @@ ExeVolZmapSetStdTool( int nId, const string& sToolName, double dLen, double dDia
 //----------------------------------------------------------------------------
 bool
 ExeVolZmapSetAdvTool( int nId, const string& sToolName,
-                      double dLen, double dDiam, double dTipLen, double dTipDiam, double dCornR)
+                      double dLen, double dDiam, double dTipLen, double dTipDiam, double dCornR, int nFlag)
 {
    IGeomDB* pGeomDB = GetCurrGeomDB() ;
    VERIFY_GEOMDB( pGeomDB, false)
   // recupero lo Zmap e assegno i dati dell'utensile
    IVolZmap* pVZM = GetVolZmap( pGeomDB->GetGeoObj( nId)) ;
    bool bOk = ( pVZM != nullptr  &&
-                pVZM->SetAdvTool( sToolName, dLen, dDiam / 2, dTipLen, dTipDiam / 2, dCornR)) ;
+                pVZM->SetAdvTool( sToolName, dLen, dDiam / 2, dTipLen, dTipDiam / 2, dCornR, nFlag)) ;
    ExeSetModified() ;
   // se richiesto, salvo il comando Lua equivalente
    if ( IsCmdLog()) {
@@ -203,7 +204,8 @@ ExeVolZmapSetAdvTool( int nId, const string& sToolName,
                                               ToString( dDiam) + "," +
                                               ToString( dTipLen) + "," +
                                               ToString( dTipDiam) + "," +
-                                              ToString( dCornR) + ")" +
+                                              ToString( dCornR) + "," +
+                                              ToString( nFlag) + ")" +
                     " -- Ok=" + ToString( bOk) ;
       LOG_INFO( GetCmdLogger(), sLua.c_str()) ;
    }
@@ -214,14 +216,14 @@ ExeVolZmapSetAdvTool( int nId, const string& sToolName,
 //----------------------------------------------------------------------------
 bool
 ExeVolZmapSetMortiserTool( int nId, const string& sToolName,
-                           double dLen, double dWidth, double dThick, double dCornR)
+                           double dLen, double dWidth, double dThick, double dCornR, int nFlag)
 {
    IGeomDB* pGeomDB = GetCurrGeomDB() ;
    VERIFY_GEOMDB( pGeomDB, false)
   // recupero lo Zmap e assegno i dati dell'utensile
    IVolZmap* pVZM = GetVolZmap( pGeomDB->GetGeoObj( nId)) ;
    bool bOk = ( pVZM != nullptr  &&
-                pVZM->SetMortiserTool( sToolName, dLen, dWidth, dThick, dCornR)) ;
+                pVZM->SetMortiserTool( sToolName, dLen, dWidth, dThick, dCornR, nFlag)) ;
    ExeSetModified() ;
   // se richiesto, salvo il comando Lua equivalente
    if ( IsCmdLog()) {
@@ -230,7 +232,8 @@ ExeVolZmapSetMortiserTool( int nId, const string& sToolName,
                                                   ToString( dLen) + "," +
                                                   ToString( dWidth) + "," +
                                                   ToString( dThick) + "," +
-                                                  ToString( dCornR) + ")" +
+                                                  ToString( dCornR) + "," +
+                                                  ToString( nFlag) + ")" +
                     " -- Ok=" + ToString( bOk) ;
       LOG_INFO( GetCmdLogger(), sLua.c_str()) ;
    }
@@ -241,14 +244,14 @@ ExeVolZmapSetMortiserTool( int nId, const string& sToolName,
 //----------------------------------------------------------------------------
 bool
 ExeVolZmapSetChiselTool( int nId, const string& sToolName,
-                         double dLen, double dWidth, double dThick)
+                         double dLen, double dWidth, double dThick, int nFlag)
 {
    IGeomDB* pGeomDB = GetCurrGeomDB() ;
    VERIFY_GEOMDB( pGeomDB, false)
   // recupero lo Zmap e assegno i dati dell'utensile
    IVolZmap* pVZM = GetVolZmap( pGeomDB->GetGeoObj( nId)) ;
    bool bOk = ( pVZM != nullptr  &&
-                pVZM->SetChiselTool( sToolName, dLen, dWidth, dThick)) ;
+                pVZM->SetChiselTool( sToolName, dLen, dWidth, dThick, nFlag)) ;
    ExeSetModified() ;
   // se richiesto, salvo il comando Lua equivalente
    if ( IsCmdLog()) {
@@ -256,7 +259,8 @@ ExeVolZmapSetChiselTool( int nId, const string& sToolName,
                                                  sToolName + "," +
                                                  ToString( dLen) + "," +
                                                  ToString( dWidth) + "," +
-                                                 ToString( dThick) + ")" +
+                                                 ToString( dThick) + "," +
+                                                 ToString( nFlag) + ")" +
                     " -- Ok=" + ToString( bOk) ;
       LOG_INFO( GetCmdLogger(), sLua.c_str()) ;
    }
diff --git a/EgtExecutor.rc b/EgtExecutor.rc
index cb9796c..2260343 100644
Binary files a/EgtExecutor.rc and b/EgtExecutor.rc differ
diff --git a/LUA_GdbModifyVol.cpp b/LUA_GdbModifyVol.cpp
index 5786b3f..a4b19af 100644
--- a/LUA_GdbModifyVol.cpp
+++ b/LUA_GdbModifyVol.cpp
@@ -82,7 +82,7 @@ LuaRemoveVolZmapPart( lua_State* L)
 static int
 LuaVolZmapSetStdTool( lua_State* L)
 {
-  // 5 parametri : Id, sToolName, dLen, dDiam, dCornR
+  // 5 o 6 parametri : Id, sToolName, dLen, dDiam, dCornR, nFlag
    int nId ;
    LuaCheckParam( L, 1, nId)
    string sToolName ;
@@ -93,9 +93,11 @@ LuaVolZmapSetStdTool( lua_State* L)
    LuaCheckParam( L, 4, dDiam)
    double dCornR ;
    LuaCheckParam( L, 5, dCornR)
+   int nFlag = 1 ;
+   LuaGetParam( L, 6, nFlag) ;
    LuaClearStack( L) ;
   // imposto utensile standard a Zmap indicato
-   bool bOk = ExeVolZmapSetStdTool( nId, sToolName, dLen, dDiam, dCornR) ;
+   bool bOk = ExeVolZmapSetStdTool( nId, sToolName, dLen, dDiam, dCornR, nFlag) ;
   // restituisco il risultato
    LuaSetParam( L, bOk) ;
    return 1 ;
@@ -105,7 +107,7 @@ LuaVolZmapSetStdTool( lua_State* L)
 static int
 LuaVolZmapSetAdvTool( lua_State* L)
 {
-  // 7 parametri : Id, sToolName, dLen, dDiam, dTipLen, dTipDiam, dCornR
+  // 7 o 8 parametri : Id, sToolName, dLen, dDiam, dTipLen, dTipDiam, dCornR, nFlag
    int nId ;
    LuaCheckParam( L, 1, nId)
    string sToolName ;
@@ -120,9 +122,11 @@ LuaVolZmapSetAdvTool( lua_State* L)
    LuaCheckParam( L, 6, dTipDiam)
    double dCornR ;
    LuaCheckParam( L, 7, dCornR)
+   int nFlag = 1 ;
+   LuaGetParam( L, 8, nFlag) ;
    LuaClearStack( L) ;
   // imposto utensile standard a Zmap indicato
-   bool bOk = ExeVolZmapSetAdvTool( nId, sToolName, dLen, dDiam, dTipLen, dTipDiam, dCornR) ;
+   bool bOk = ExeVolZmapSetAdvTool( nId, sToolName, dLen, dDiam, dTipLen, dTipDiam, dCornR, nFlag) ;
   // restituisco il risultato
    LuaSetParam( L, bOk) ;
    return 1 ;
@@ -132,7 +136,7 @@ LuaVolZmapSetAdvTool( lua_State* L)
 static int
 LuaVolZmapSetMortiserTool( lua_State* L)
 {
-  // 6 parametri : Id, sToolName, dLen, dWidth, dThick, dCornR
+  // 6 o 7 parametri : Id, sToolName, dLen, dWidth, dThick, dCornR, nFlag
    int nId ;
    LuaCheckParam( L, 1, nId)
    string sToolName ;
@@ -145,9 +149,11 @@ LuaVolZmapSetMortiserTool( lua_State* L)
    LuaCheckParam( L, 5, dThick)
    double dCornR ;
    LuaCheckParam( L, 6, dCornR)
+   int nFlag = 1 ;
+   LuaGetParam( L, 7, nFlag) ;
    LuaClearStack( L) ;
   // imposto mortasatrice a Zmap indicato
-   bool bOk = ExeVolZmapSetMortiserTool( nId, sToolName, dLen, dWidth, dThick, dCornR) ;
+   bool bOk = ExeVolZmapSetMortiserTool( nId, sToolName, dLen, dWidth, dThick, dCornR, nFlag) ;
   // restituisco il risultato
    LuaSetParam( L, bOk) ;
    return 1 ;
@@ -157,7 +163,7 @@ LuaVolZmapSetMortiserTool( lua_State* L)
 static int
 LuaVolZmapSetChiselTool( lua_State* L)
 {
-  // 5 parametri : Id, sToolName, dLen, dWidth, dThick
+  // 5 o 6 parametri : Id, sToolName, dLen, dWidth, dThick, nFlag
    int nId ;
    LuaCheckParam( L, 1, nId)
    string sToolName ;
@@ -168,9 +174,11 @@ LuaVolZmapSetChiselTool( lua_State* L)
    LuaCheckParam( L, 4, dWidth)
    double dThick ;
    LuaCheckParam( L, 5, dThick)
+   int nFlag = 1 ;
+   LuaGetParam( L, 6, nFlag) ;
    LuaClearStack( L) ;
   // imposto scalpello a Zmap indicato
-   bool bOk = ExeVolZmapSetChiselTool( nId, sToolName, dLen, dWidth, dThick) ;
+   bool bOk = ExeVolZmapSetChiselTool( nId, sToolName, dLen, dWidth, dThick, nFlag) ;
   // restituisco il risultato
    LuaSetParam( L, bOk) ;
    return 1 ;