diff --git a/API_MachMgr.cpp b/API_MachMgr.cpp
index 4acf490..06cd115 100644
--- a/API_MachMgr.cpp
+++ b/API_MachMgr.cpp
@@ -89,6 +89,19 @@ __stdcall EgtGetNextMachGroup( int nId)
    return ExeGetNextMachGroup( nId) ;
 }
 
+//-----------------------------------------------------------------------------
+int
+__stdcall EgtGetLastMachGroup( void)
+{
+   return ExeGetLastMachGroup() ;
+}
+
+//-----------------------------------------------------------------------------
+int
+__stdcall EgtGetPrevMachGroup( int nId)
+{
+   return ExeGetPrevMachGroup( nId) ;
+}
 //-----------------------------------------------------------------------------
 BOOL
 __stdcall EgtGetMachGroupNewName( const wchar_t* wsName, wchar_t*& wsNewName)
diff --git a/EgtInterface.rc b/EgtInterface.rc
index 0bf5c8b..1b1a628 100644
Binary files a/EgtInterface.rc and b/EgtInterface.rc differ