diff --git a/EGkGeomDB.h b/EGkGeomDB.h
index 144d627..2de1511 100644
--- a/EGkGeomDB.h
+++ b/EGkGeomDB.h
@@ -53,6 +53,8 @@ class __declspec( novtable) IGeomDB
       virtual bool GetRefBBox( int nId, const Frame3d& frRef, BBox3d& b3Ref, int nFlag = BBF_NONE) const = 0 ;
       virtual int  Copy( int nIdSou, int nIdDest, int nParentIdDest) = 0 ;
       virtual int  CopyGlob( int nIdSou, int nIdDest, int nParentIdDest) = 0 ;
+      virtual bool Relocate( int nId, int nNewParentId) = 0  ;
+      virtual bool RelocateGlob( int nId, int nNewParentId) = 0 ;
       virtual bool Erase( int nId) = 0 ;
       virtual bool Translate( int nId, const Vector3d& vtMove) = 0 ;
       virtual bool TranslateGlob( int nId, const Vector3d& vtMove) = 0 ;