diff --git a/EGrScene.h b/EGrScene.h
index 1aec5bc..36a9c4f 100644
--- a/EGrScene.h
+++ b/EGrScene.h
@@ -66,6 +66,7 @@ class IEGrScene
       virtual bool PanCamera( const Point3d& ptWinOld, const Point3d& ptWinNew) = 0 ;
       virtual bool RotateCamera( const Point3d& ptWinOld, const Point3d& ptWinNew) = 0 ;
       virtual bool ZoomAll( void) = 0 ;
+      virtual bool ZoomObject( int nId) = 0 ;
       virtual bool ZoomRadius( double dRadius) = 0 ;
       virtual bool ZoomChange( double dCoeff) = 0 ;
       virtual bool ZoomOnPoint( const Point3d& ptWin, double dCoeff) = 0 ;
diff --git a/EInAPI.h b/EInAPI.h
index 51cb994..ac64e2f 100644
--- a/EInAPI.h
+++ b/EInAPI.h
@@ -791,6 +791,8 @@ EIN_EXPORT BOOL __stdcall EgtGetShowTriaAdv( void) ;
 EIN_EXPORT BOOL __stdcall EgtSetShowZmap( int nMode, BOOL bRedraw) ;
 EIN_EXPORT int  __stdcall EgtGetShowZmap( void) ;
 EIN_EXPORT BOOL __stdcall EgtZoom( int nZoom, BOOL bRedraw) ;
+EIN_EXPORT BOOL __stdcall EgtZoomRadius( double dRadius, BOOL bRedraw) ;
+EIN_EXPORT BOOL __stdcall EgtZoomObject( int nId, BOOL bRedraw) ;
 EIN_EXPORT BOOL __stdcall EgtZoomOnPoint( int nWinX, int nWinY, double dCoeff, BOOL bRedraw) ;
 EIN_EXPORT BOOL __stdcall EgtSetGeoLine( const double ptP1[3], const double ptP2[3], BOOL bRedraw) ;
 EIN_EXPORT BOOL __stdcall EgtResetGeoLine( BOOL bRedraw) ;
diff --git a/EXeExecutor.h b/EXeExecutor.h
index 34db327..fd91f07 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -887,6 +887,7 @@ EXE_EXPORT bool ExeSetShowZmap( int nMode, bool bRedraw) ;
 EXE_EXPORT int  ExeGetShowZmap( void) ;
 EXE_EXPORT bool ExeZoomRadius( double dRadius, bool bRedraw) ;
 EXE_EXPORT bool ExeZoom( int nZoom, bool bRedraw) ;
+EXE_EXPORT bool ExeZoomObject( int nId, bool bRedraw) ;
 EXE_EXPORT bool ExeZoomOnPoint( int nWinX, int nWinY, double dCoeff, bool bRedraw) ;
 EXE_EXPORT bool ExeSetGeoLine( const Point3d& ptP1, const Point3d& ptP2, bool bRedraw) ;
 EXE_EXPORT bool ExeResetGeoLine( bool bRedraw) ;