diff --git a/EInAPI.h b/EInAPI.h
index 19bed4c..52317d3 100644
--- a/EInAPI.h
+++ b/EInAPI.h
@@ -71,8 +71,8 @@ EIN_EXPORT BOOL __stdcall EgtSaveFile( const wchar_t* wsFilePath, int nFlag) ;
 
 // Exchange
 EIN_EXPORT int  __stdcall EgtGetFileType( const wchar_t* wsFilePath) ;
-EIN_EXPORT BOOL __stdcall EgtImportDxf( const wchar_t* wsFilePath) ;
-EIN_EXPORT BOOL __stdcall EgtImportStl( const wchar_t* wsFilePath) ;
+EIN_EXPORT BOOL __stdcall EgtImportDxf( const wchar_t* wsFilePath, double dScaleFactor) ;
+EIN_EXPORT BOOL __stdcall EgtImportStl( const wchar_t* wsFilePath, double dScaleFactor) ;
 EIN_EXPORT BOOL __stdcall EgtImportCnc( const wchar_t* wsFilePath) ;
 EIN_EXPORT BOOL __stdcall EgtExportDxf( int nId, const wchar_t* wsFilePath) ;
 EIN_EXPORT BOOL __stdcall EgtExportStl( int nId, const wchar_t* wsFilePath) ;
@@ -193,6 +193,8 @@ EIN_EXPORT int  __stdcall EgtCreateSurfTmByTriangles( int nParentId, int nNumId,
 EIN_EXPORT int  __stdcall EgtCreateSurfTmBySewing( int nParentId, int nNumId, const int nIds[], BOOL bErase) ;
 
 // GeomDB PartLayer
+EIN_EXPORT int  __stdcall EgtIsPart( int nPartId) ;
+EIN_EXPORT int  __stdcall EgtIsLayer( int nLayerId) ;
 EIN_EXPORT int  __stdcall EgtGetCurrPart( void) ;
 EIN_EXPORT int  __stdcall EgtGetCurrLayer( void) ;
 EIN_EXPORT BOOL __stdcall EgtSetCurrPartLayer( int nPartId, int nLayerId) ;