[Dx4win] how do I merge DX4WIN logs without dups?

[Jack Shirley N8DX]

OK,

Let me ask another way: how do I merge two Ver 9 logs without it
duplicating every QSO?  Is there a new function in V9?  When I had V8 I
would use the import/export , merge DX4WIN log and use imported QSO is
ignored.
N8DX