diff --git a/ENsAutoNester.h b/ENsAutoNester.h
index fe883ea..686fe89 100644
--- a/ENsAutoNester.h
+++ b/ENsAutoNester.h
@@ -44,6 +44,7 @@ class __declspec( novtable) IAutoNester
       virtual ~IAutoNester( void) {} 
       virtual bool Start( void) = 0 ;
       virtual bool SetGuillotineMode( void) = 0 ;
+      virtual bool SetStartCorner( int nCorner) = 0 ;
       virtual bool AddSheet( int nSheetId, const PolyArc& Outline, double dKerf, int nPriority, int nCount, bool* pbIsRect = nullptr) = 0 ;
       virtual bool AddDefectToSheet( int nSheetId, const PolyArc& Outline) = 0 ;
       virtual bool AddPart( int nPartId, const PolyArc& Outline, bool bCanFlip, bool bCanRotate, double dRotStep, int nPriority, int nCount) = 0 ;
@@ -63,3 +64,16 @@ class __declspec( novtable) IAutoNester
 extern "C" {
    ENS_EXPORT IAutoNester* CreateAutoNester(void) ;
 }
+
+//-----------------------------------------------------------------------------
+const int NST_CORNER_BL = 0 ;
+const int NST_CORNER_TL = 1 ;
+const int NST_CORNER_BR = 2 ;
+const int NST_CORNER_TR = 3 ;
+
+//-----------------------------------------------------------------------------
+const int NST_STATUS_ERR = -1 ;
+const int NST_STATUS_CANC = 0 ;
+const int NST_STATUS_COMP = 1 ;
+const int NST_STATUS_INTRES = 2 ;
+const int NST_STATUS_OK = 3 ;
diff --git a/EXeExecutor.h b/EXeExecutor.h
index 261f619..4ad9110 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -772,6 +772,7 @@ EXE_EXPORT int  ExeVerifyCutAsSplitting( int nMchId) ;
 // AutoNesting
 EXE_EXPORT bool ExeAutoNestStart( void) ;
 EXE_EXPORT bool ExeAutoNestSetGuillotineMode( void) ;
+EXE_EXPORT bool ExeAutoNestSetStartCorner( int nCorner) ;
 EXE_EXPORT bool ExeAutoNestAddSheet( int nSheetId, int nOutlineId, double dKerf, int nPriority, int nCount, bool* pbIsRect = nullptr) ;
 EXE_EXPORT bool ExeAutoNestAddDefectToSheet( int nSheetId, int nDefectId) ;
 EXE_EXPORT bool ExeAutoNestAddPart( int nPartId, int nOutlineId, bool bCanFlip, bool bCanRotate, double dRotStep, int nPriority, int nCount) ;