diff --git a/EGkVolZmap.h b/EGkVolZmap.h
index f03796c..26883de 100644
--- a/EGkVolZmap.h
+++ b/EGkVolZmap.h
@@ -61,7 +61,9 @@ class __declspec( novtable) IVolZmap : public IGeoObj
       virtual bool GetEdges( ICURVEPOVECTOR& vpCurve) const = 0 ;
       virtual bool GetVolume( double& dVol) const = 0 ;
       virtual bool GetDexelLines( int nDir, int nPos1, int nPos2, POLYLINELIST& lstPL) const = 0 ;
-      virtual bool SetTolerances( double dLinTol, double dAngTolDeg = 90) = 0 ;
+      virtual int  GetResolution( void) const = 0 ;
+      virtual bool ChangeResolution( int nDexvoxRatio) = 0 ;
+      virtual bool SetToolTolerances( double dLinTol, double dAngTolDeg = 90) = 0 ;
       virtual bool SetStdTool( const std::string& sToolName, double dH, double dR, double dCornR, double dCutterH, int nFlag) = 0 ;
       virtual bool SetAdvTool( const std::string& sToolName,
                                double dH, double dR, double dTipH, double dTipR, double dCornR, double dCutterH, int nFlag) = 0 ;
@@ -90,7 +92,6 @@ class __declspec( novtable) IVolZmap : public IGeoObj
       virtual IVolZmap* ClonePart( int nPart) const = 0 ;
       virtual bool RemovePart( int nPart) = 0 ;
       virtual int  GetPartMinDistFromPoint( const Point3d& ptP) const = 0 ;
-      virtual bool ChangeResolution( int nDexvoxRatio) = 0 ;
 } ;
 
 //-----------------------------------------------------------------------------
diff --git a/EXeExecutor.h b/EXeExecutor.h
index 1af6926..77c506f 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -521,9 +521,7 @@ EXE_EXPORT int  ExeSurfTmSplit( int nId, int nSplitterId, int* pnCount) ;
 
 // GeomDb Volume Modify
 EXE_EXPORT int  ExeExplodeVolume( int nId, int* pnCount) ;
-EXE_EXPORT bool ExeVolZmapGetPartBBox( int nId, int nPart, int nFlag, BBox3d& b3Box) ;
-EXE_EXPORT bool ExeVolZmapGetPartBBoxGlob( int nId, int nPart, int nFlag, BBox3d& b3Box) ;
-EXE_EXPORT int  ExeCopyVolZmapPart( int nId, int nPart, int nDestGrpId) ;
+EXE_EXPORT bool ExeVolZmapChangeResolution( int nId, int nNewRes) ;
 EXE_EXPORT bool ExeRemoveVolZmapPart( int nId, int nPart) ;
 EXE_EXPORT bool ExeVolZmapSetStdTool( const INTVECTOR& vIds, const std::string& sToolName,
                                       double dLen, double dDiam, double dCornR, double dCutterH, int nFlag) ;
@@ -542,9 +540,6 @@ EXE_EXPORT bool ExeVolZmapMillingStep( int nId, const Point3d& ptPs, const Vecto
                                                 const Point3d& ptPe, const Vector3d& vtD, int nRefTypee) ;
 EXE_EXPORT bool ExeVolZmapMillingStep( int nId, const Point3d& ptPs, const Vector3d& vtDs, const Vector3d& vtAs,
                                                 const Point3d& ptPe, const Vector3d& vtDe, const Vector3d& vtAe, int nRefType) ;
-EXE_EXPORT bool ExeVolZmapGetDepth( int nId, const Point3d& ptP, const Vector3d& vtDir, int nRefType, bool bExact,
-                                    double& dInLen, double& dOutLen) ;
-EXE_EXPORT int  ExeVolZmapGetEdges( int nId, int nDestGrpId, int* pnCount) ;
 EXE_EXPORT bool ExeCutVolZmapPlane( int nId, const Point3d& ptOn, const Vector3d& vtN, int nRefType) ;
 
 // GeomDB Get
@@ -622,9 +617,16 @@ EXE_EXPORT int  ExeExtractSurfBezierLoops( int nId, int nDestGrpId, int* pnCount
 
 // GeomDb Volume Get
 EXE_EXPORT bool ExeVolZmapVolume( int nId, double& dVol) ;
+EXE_EXPORT int  ExeVolZmapResolution( int nId) ;
 EXE_EXPORT int  ExeVolZmapPartCount( int nId) ;
 EXE_EXPORT bool ExeVolZmapPartVolume( int nId, int nPart, double& dVol) ;
+EXE_EXPORT bool ExeVolZmapGetPartBBox( int nId, int nPart, int nFlag, BBox3d& b3Box) ;
+EXE_EXPORT bool ExeVolZmapGetPartBBoxGlob( int nId, int nPart, int nFlag, BBox3d& b3Box) ;
 EXE_EXPORT bool ExeVolZmapGetPartMinDist( int nId, const Point3d ptNear, int nRefType, int& nPart) ;
+EXE_EXPORT int  ExeCopyVolZmapPart( int nId, int nPart, int nDestGrpId) ;
+EXE_EXPORT bool ExeVolZmapGetDepth( int nId, const Point3d& ptP, const Vector3d& vtDir, int nRefType, bool bExact,
+                                    double& dInLen, double& dOutLen) ;
+EXE_EXPORT int  ExeVolZmapGetEdges( int nId, int nDestGrpId, int* pnCount) ;
 
 // Geo Snap Vector/Point/Frame
 EXE_EXPORT bool ExeStartPoint( int nId, int nRefId, Point3d& ptP) ;