diff --git a/EGkSurfTriMesh.h b/EGkSurfTriMesh.h
index 6fc1c62..accb21c 100644
--- a/EGkSurfTriMesh.h
+++ b/EGkSurfTriMesh.h
@@ -126,6 +126,8 @@ class __declspec( novtable) ISurfTriMesh : public ISurf
       virtual int  GetPartCount( void) const = 0 ;
       virtual bool RemovePart( int nPart) = 0 ;
       virtual ISurfTriMesh* ClonePart( int nPart) const = 0 ;
+      virtual bool SetTFlag( int nId, int nTFlag) = 0 ;
+      virtual bool GetTFlag( int nId, int& nFlag) const = 0 ;
       virtual int  GetMaxTFlag( void) const = 0 ;
       virtual bool ResetTFlags( void) = 0 ;
 } ;
diff --git a/EXeExecutor.h b/EXeExecutor.h
index e410079..e16a6e4 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -639,8 +639,11 @@ EXE_EXPORT bool ExeSurfTmCut( int nId, int nCutterId, bool bInVsOut, bool bSaveO
 EXE_EXPORT bool ExeSurfTmSubtractProjectedFacesOnFace( int nSurfId, int nFaceInd, int nDestGrpId,
                                                        INTVECTOR vSurfsId, bool bOCFlag,
                                                        bool& bExistProjection, int& nNewId, int& nNewFaceNbr) ;
+EXE_EXPORT bool ExeSurfTmSetFaceColor( int nId, int nFacet, int nColor) ;
+EXE_EXPORT bool ExeSurfTmGetTriaColor( int nId, int nTria, int& nColor) ;
 EXE_EXPORT bool ExeSurfTmResetTwoColors( int nId) ;
 EXE_EXPORT bool ExeSurfTmSetShowEdges( int nId, bool bShow) ;
+EXE_EXPORT bool ExeSurfTmGetShowEdges( int nId, bool& bShow) ;
 EXE_EXPORT bool ExeSurfBzTrim( int nId, int nCutterId) ;
 
 // GeomDb Volume Modify