diff --git a/EGkSurfBezier.h b/EGkSurfBezier.h
index d53d306..6ebf797 100644
--- a/EGkSurfBezier.h
+++ b/EGkSurfBezier.h
@@ -37,6 +37,7 @@ class __declspec( novtable) ISurfBezier : public ISurf
       virtual bool SetControlPoint( int nIndU, int nIndV, const Point3d& ptCtrl, double dW) = 0 ;
       virtual bool SetControlPoint( int nInd, const Point3d& ptCtrl, double dW) = 0 ;
       virtual bool SetTrimRegion( const ISurfFlatRegion& sfrTrimReg) = 0 ;
+      virtual ISurfFlatRegion* GetTrimRegion( void) const = 0 ;
       virtual bool GetInfo( int& nDegU, int& nDegV, int& nSpanU, int& nSpanV, bool& bIsRat, bool& bTrimmed) const = 0 ;
       virtual const Point3d& GetControlPoint( int nIndU, int nIndV, bool* pbOk) const = 0 ;
       virtual const Point3d& GetControlPoint( int nInd, bool* pbOk) const = 0 ;
@@ -57,6 +58,7 @@ class __declspec( novtable) ISurfBezier : public ISurf
       virtual bool GetControlCurveOnU( int nIndV, PolyLine& plCtrlU) const = 0 ;
       virtual bool GetControlCurveOnV( int nIndU, PolyLine& plCtrlV) const = 0 ;
       virtual const ISurfTriMesh* GetAuxSurf( void) const = 0 ;
+      virtual bool GetLeaves ( std::vector<std::tuple<int, Point3d, Point3d>>& vLeaves) const = 0 ;
 } ;
 
 //-----------------------------------------------------------------------------
diff --git a/EXeExecutor.h b/EXeExecutor.h
index 5b3d748..c23b20c 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -356,6 +356,7 @@ EXE_EXPORT int  ExeCreateSurfTmBySurfBezier( int nParentId, int nSbezId) ;
 EXE_EXPORT int  ExeCreateSurfTmByVolZmap( int nParentId, int nZmapId, int nPart) ;
 EXE_EXPORT int  ExeCreateSurfBezier( int nParentId, int nDegU, int nDegV, int nSpanU, int nSpanV, const PNTVECTOR& vPnt, int nRefType) ;
 EXE_EXPORT int  ExeCreateSurfBezierRational( int nParentId, int nDegU, int nDegV, int nSpanU, int nSpanV, const PNTUVECTOR& vPntW, int nRefType) ;
+EXE_EXPORT int  ExeCreateSurfBezierLeaves( int nParentId, int nSurfBzId, int nTextHeight) ;
 
 // GeomDB Create Volume
 EXE_EXPORT int  ExeCreateVolZmap( int nParentId, const Point3d& ptIni, double dDimX,
@@ -606,6 +607,7 @@ EXE_EXPORT bool ExeSurfTmIntersect( int nId1, int nId2, bool bTwoColors = false)
 EXE_EXPORT bool ExeSurfTmResetTwoColors( int nId) ;
 EXE_EXPORT int  ExeSurfTmSplit( int nId, int nSplitterId, int* pnCount) ;
 EXE_EXPORT bool ExeSurfTmCut( int nId, int nCutterId, bool bInVsOut, bool bSaveOnEq) ;
+EXE_EXPORT bool ExeSurfBzTrim( int nId, int nCutterId) ;
 
 // GeomDb Volume Modify
 EXE_EXPORT int  ExeExplodeVolume( int nId, int* pnCount) ;