diff --git a/EInAPI.h b/EInAPI.h
index 2674b8c..521f7cf 100644
--- a/EInAPI.h
+++ b/EInAPI.h
@@ -468,6 +468,8 @@ EIN_EXPORT BOOL __stdcall EgtSurfTmAdd( int nId1, int nId2, BOOL bTwoColors) ;
 EIN_EXPORT BOOL __stdcall EgtSurfTmSubtract( int nId1, int nId2, BOOL bTwoColors) ;
 EIN_EXPORT BOOL __stdcall EgtSurfTmIntersect( int nId1, int nId2, BOOL bTwoColors) ;
 EIN_EXPORT BOOL __stdcall EgtSurfTmResetTwoColors( int nId) ;
+EIN_EXPORT int  __stdcall EgtSurfTmSplit( int nId, int nSplitterId, int* pnCount) ;
+EIN_EXPORT BOOL __stdcall EgtSurfTmCut( int nId, int nCutterId, BOOL bInVsOut, BOOL bSaveOnEq) ;
 
 // GeomDb Get
 EIN_EXPORT BOOL __stdcall EgtTextNormVersor( int nId, int nRefId, double vtNorm[3]) ;
diff --git a/EXeExecutor.h b/EXeExecutor.h
index 34dc179..f3dd0fd 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -519,6 +519,7 @@ EXE_EXPORT bool ExeSurfTmSubtract( int nId1, int nId2, bool bTwoColors = false)
 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) ;
 
 // GeomDb Volume Modify
 EXE_EXPORT int  ExeExplodeVolume( int nId, int* pnCount) ;