diff --git a/EMkMachMgr.h b/EMkMachMgr.h
index b5cdeb5..7b7080e 100644
--- a/EMkMachMgr.h
+++ b/EMkMachMgr.h
@@ -85,6 +85,7 @@ class __declspec( novtable) IMachMgr
       virtual int  GetNextRawPart( int nId) const = 0 ;
       virtual bool IsRawPart( int nId) const = 0 ;
       virtual int  AddRawPart( const Point3d& ptOrig, double dLen, double dWidth, double dHeight, Color cCol) = 0 ;
+      virtual int  AddRawPart( int nCrvSrfId, double dOverMat, Color cCol) = 0 ;
       virtual int  AddRawPartWithPart( int nPartId, int nCrvSrfId, double dOverMat, Color cCol) = 0 ;
       virtual bool ModifyRawPart( int nRawId, const Point3d& ptOrig, double dLen, double dWidth, double dHeight, Color cCol) = 0 ;
       virtual bool ModifyRawPart( int nRawId, int nCrvId, double dOverMat, double dHeight, Color cCol) = 0 ;
diff --git a/EXeExecutor.h b/EXeExecutor.h
index 0bfd061..408dc04 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -1097,7 +1097,8 @@ EXE_EXPORT int  ExeGetFirstRawPart( void) ;
 EXE_EXPORT int  ExeGetNextRawPart( int nRawId) ;
 EXE_EXPORT bool ExeIsRawPart( int nRawId) ;
 EXE_EXPORT int  ExeAddRawPart( Point3d ptOrig, double dLength, double dWidth, double dHeight, Color cCol) ;
-EXE_EXPORT int  ExeAddRawPartWithPart( int nPartId, int nCrvId, double dOverMat, Color cCol) ;
+EXE_EXPORT int  ExeAddRawPartGen( int nCrvSrfId, double dOverMat, Color cCol) ;
+EXE_EXPORT int  ExeAddRawPartWithPart( int nPartId, int nCrvSrfId, double dOverMat, Color cCol) ;
 EXE_EXPORT bool ExeModifyRawPart( int nRawId, Point3d ptOrig, double dLength, double dWidth, double dHeight, Color cCol) ;
 EXE_EXPORT bool ExeModifyRawPart( int nRawId, int nCrvId, double dOverMat, double dHeight, Color cCol) ;
 EXE_EXPORT bool ExeModifyRawPartSize( int nRawId, double dLength, double dWidth, double dHeight) ;