diff --git a/API_GdbModifyCurve.cpp b/API_GdbModifyCurve.cpp
index 3c688d7..104a61a 100644
--- a/API_GdbModifyCurve.cpp
+++ b/API_GdbModifyCurve.cpp
@@ -186,6 +186,27 @@ __stdcall EgtModifyArc3P( int nId, const double ptMid[3], int nRefType)
    return ( ExeModifyArc3P( nId, ptMid, nRefType) ? TRUE : FALSE) ;
 }
 
+//-------------------------------------------------------------------------------
+BOOL
+__stdcall EgtAddCurveCompoJoint( int nId, double dU)
+{
+   return ( ExeAddCurveCompoJoint( nId, dU) ? TRUE : FALSE) ;
+}
+
+//-------------------------------------------------------------------------------
+BOOL
+__stdcall EgtModifyCurveCompoJoint( int nId, int nU, const double ptP[3], int nRefType)
+{
+   return ( ExeModifyCurveCompoJoint( nId, nU, ptP, nRefType) ? TRUE : FALSE) ;
+}
+
+//-------------------------------------------------------------------------------
+BOOL
+__stdcall EgtRemoveCurveCompoJoint( int nId, int nU)
+{
+   return ( ExeRemoveCurveCompoJoint( nId, nU) ? TRUE : FALSE) ;
+}
+
 //-------------------------------------------------------------------------------
 int
 __stdcall EgtExplodeCurveCompo( int nId, int* pnCount)
diff --git a/API_MachMgr.cpp b/API_MachMgr.cpp
index eaeaa46..721505f 100644
--- a/API_MachMgr.cpp
+++ b/API_MachMgr.cpp
@@ -204,6 +204,14 @@ __stdcall EgtModifyRawPart( int nRawId, const double ptOrig[3],
    return ( ExeModifyRawPart( nRawId, ptOrig, dLength, dWidth, dHeight, vCol) ? TRUE : FALSE) ;
 }
 
+//-----------------------------------------------------------------------------
+BOOL
+__stdcall EgtModifyRawPart2( int nRawId, int nCrvId,
+                             double dOverMat, double dZmin, double dHeight, const int vCol[4])
+{
+   return ( ExeModifyRawPart( nRawId, nCrvId, dOverMat, dZmin, dHeight, vCol) ? TRUE : FALSE) ;
+}
+
 //-----------------------------------------------------------------------------
 BOOL
 __stdcall EgtModifyRawPartSize( int nRawId, double dLength, double dWidth, double dHeight)
diff --git a/API_Nesting.cpp b/API_Nesting.cpp
index ea67f4f..620cf10 100644
--- a/API_Nesting.cpp
+++ b/API_Nesting.cpp
@@ -103,8 +103,22 @@ __stdcall EgtMoveBoxCluster( int nId[], int nCount, double vtMove[3],
 
 //-----------------------------------------------------------------------------
 BOOL
-__stdcall EgtVerifyPartCluster( int nId[], int nCount, BOOL bReducedCut,
-                                double dXmin, double dYmin, double dXmax, double dYmax)
+__stdcall EgtCreateOutRegion( int nParentId,
+                              double dXmin, double dYmin, double dXmax, double dYmax, double dZ)
+{
+   return ( ExeCreateOutRegion( nParentId, dXmin, dYmin, dXmax, dYmax, dZ) ? TRUE : FALSE) ;
+}
+
+//-----------------------------------------------------------------------------
+BOOL
+__stdcall EgtCreateOutRegion2( int nParentId, int nOutCrvId)
+{
+   return ( ExeCreateOutRegion( nParentId, nOutCrvId) ? TRUE : FALSE) ;
+}
+
+//-----------------------------------------------------------------------------
+BOOL
+__stdcall EgtVerifyPartCluster( int nId[], int nCount, BOOL bReducedCut)
 {
   // verifico
    if ( nId == nullptr  ||  nCount <= 0)
@@ -115,7 +129,7 @@ __stdcall EgtVerifyPartCluster( int nId[], int nCount, BOOL bReducedCut,
    for ( int i = 0 ; i < nCount ; ++ i)
       vIds.push_back( nId[i]) ;
   // eseguo
-   if ( ! ExeVerifyPartCluster( vIds, ( bReducedCut != FALSE), dXmin, dYmin,dXmax, dYmax))
+   if ( ! ExeVerifyPartCluster( vIds, ( bReducedCut != FALSE)))
       return FALSE ;
    return TRUE ;
 }
@@ -141,8 +155,25 @@ __stdcall EgtPackPartCluster( int nId[], int nCount, BOOL bReducedCut,
 
 //-----------------------------------------------------------------------------
 BOOL
-__stdcall EgtMovePartCluster( int nId[], int nCount, BOOL bReducedCut, double vtMove[3],
-                              double dXmin, double dYmin, double dXmax, double dYmax)
+__stdcall EgtPackPartCluster2( int nId[], int nCount, BOOL bReducedCut, BOOL bBottomUp)
+{
+  // verifico
+   if ( nId == nullptr  ||  nCount <= 0)
+      return FALSE ;
+  // riempio il vettore
+   INTVECTOR vIds ;
+   vIds.reserve( nCount) ;
+   for ( int i = 0 ; i < nCount ; ++ i)
+      vIds.push_back( nId[i]) ;
+  // eseguo
+   if ( ! ExePackPartCluster( vIds, ( bReducedCut != FALSE), ( bBottomUp != FALSE)))
+      return FALSE ;
+   return TRUE ;
+}
+
+//-----------------------------------------------------------------------------
+BOOL
+__stdcall EgtMovePartCluster( int nId[], int nCount, BOOL bReducedCut, double vtMove[3])
 {
   // verifico
    if ( nId == nullptr  ||  nCount <= 0)
@@ -154,7 +185,7 @@ __stdcall EgtMovePartCluster( int nId[], int nCount, BOOL bReducedCut, double vt
       vIds.push_back( nId[i]) ;
   // eseguo
    Vector3d vtM = vtMove ;
-   if ( ! ExeMovePartCluster( vIds, ( bReducedCut != FALSE), vtM, dXmin, dYmin, dXmax, dYmax))
+   if ( ! ExeMovePartCluster( vIds, ( bReducedCut != FALSE), vtM))
       return FALSE ;
    VEC_FROM_3D( vtMove, vtM)
    return TRUE ;
@@ -162,8 +193,7 @@ __stdcall EgtMovePartCluster( int nId[], int nCount, BOOL bReducedCut, double vt
 
 //-----------------------------------------------------------------------------
 BOOL
-__stdcall EgtRotatePartCluster( int nId[], int nCount, BOOL bReducedCut, const double ptCen[3], double* pdRotAngDeg, 
-                                double dXmin, double dYmin, double dXmax, double dYmax)
+__stdcall EgtRotatePartCluster( int nId[], int nCount, BOOL bReducedCut, const double ptCen[3], double* pdRotAngDeg)
 {
   // verifico
    if ( nId == nullptr  ||  nCount <= 0  ||  pdRotAngDeg == nullptr)
@@ -174,15 +204,14 @@ __stdcall EgtRotatePartCluster( int nId[], int nCount, BOOL bReducedCut, const d
    for ( int i = 0 ; i < nCount ; ++ i)
       vIds.push_back( nId[i]) ;
   // eseguo
-   if ( ! ExeRotatePartCluster( vIds, ( bReducedCut != FALSE), ptCen, *pdRotAngDeg, dXmin, dYmin, dXmax, dYmax))
+   if ( ! ExeRotatePartCluster( vIds, ( bReducedCut != FALSE), ptCen, *pdRotAngDeg))
       return FALSE ;
    return TRUE ;
 }
 
 //-----------------------------------------------------------------------------
 BOOL
-__stdcall EgtTgMovePartClusterOnCollision( int nId[], int nCount, BOOL bReducedCut, double vtMove[3],
-                                           double dXmin, double dYmin, double dXmax, double dYmax)
+__stdcall EgtTgMovePartClusterOnCollision( int nId[], int nCount, BOOL bReducedCut, double vtMove[3])
 {
   // verifico
    if ( nId == nullptr  ||  nCount <= 0)
@@ -194,7 +223,7 @@ __stdcall EgtTgMovePartClusterOnCollision( int nId[], int nCount, BOOL bReducedC
       vIds.push_back( nId[i]) ;
   // eseguo
    Vector3d vtM = vtMove ;
-   if ( ! ExeTgMovePartClusterOnCollision( vIds, ( bReducedCut != FALSE), vtM, dXmin, dYmin, dXmax, dYmax))
+   if ( ! ExeTgMovePartClusterOnCollision( vIds, ( bReducedCut != FALSE), vtM))
       return FALSE ;
    VEC_FROM_3D( vtMove, vtM)
    return TRUE ;
@@ -202,8 +231,7 @@ __stdcall EgtTgMovePartClusterOnCollision( int nId[], int nCount, BOOL bReducedC
 
 //-----------------------------------------------------------------------------
 BOOL
-__stdcall EgtAlignPartClusterOnCollision( int nId[], int nCount, BOOL bReducedCut,
-                                          double dXmin, double dYmin, double dXmax, double dYmax, BOOL* pbMoved)
+__stdcall EgtAlignPartClusterOnCollision( int nId[], int nCount, BOOL bReducedCut, BOOL* pbMoved)
 {
   // verifico
    if ( nId == nullptr  ||  nCount <= 0)
@@ -215,7 +243,7 @@ __stdcall EgtAlignPartClusterOnCollision( int nId[], int nCount, BOOL bReducedCu
       vIds.push_back( nId[i]) ;
   // eseguo
    bool bMoved ;
-   if ( ! ExeAlignPartClusterOnCollision( vIds, ( bReducedCut != FALSE), dXmin, dYmin, dXmax, dYmax, bMoved))
+   if ( ! ExeAlignPartClusterOnCollision( vIds, ( bReducedCut != FALSE), bMoved))
       return FALSE ;
    if ( pbMoved != nullptr)
       *pbMoved = bMoved ;
@@ -224,8 +252,7 @@ __stdcall EgtAlignPartClusterOnCollision( int nId[], int nCount, BOOL bReducedCu
 
 //-----------------------------------------------------------------------------
 BOOL
-__stdcall EgtMoveToSnapPointOnCollision( int nId[], int nCount, BOOL bReducedCut, double dMaxMove,
-                                         double dXmin, double dYmin, double dXmax, double dYmax, BOOL* pbMoved)
+__stdcall EgtMoveToSnapPointOnCollision( int nId[], int nCount, BOOL bReducedCut, double dMaxMove, BOOL* pbMoved)
 {
   // verifico
    if ( nId == nullptr  ||  nCount <= 0)
@@ -237,7 +264,7 @@ __stdcall EgtMoveToSnapPointOnCollision( int nId[], int nCount, BOOL bReducedCut
       vIds.push_back( nId[i]) ;
   // eseguo
    bool bMoved ;
-   if ( ! ExeMoveToSnapPointOnCollision( vIds, ( bReducedCut != FALSE), dMaxMove, dXmin, dYmin, dXmax, dYmax, bMoved))
+   if ( ! ExeMoveToSnapPointOnCollision( vIds, ( bReducedCut != FALSE), dMaxMove, bMoved))
       return FALSE ;
    if ( pbMoved != nullptr)
       *pbMoved = ( bMoved ? TRUE : FALSE) ;