Link Requirements from RDNG to Test cases in RQM when importing test cases from excel

I am using the Excel Add-in to import the test cases/scripts from excel to Rational Quality Manager (RQM)

My requirements are in Rational Doors Next Generation (RDNG) and want to link them with the test cases in RQM via the excel add in.

I see another question like mine in the forum but the answer is only by the Excel Add-in window, I want to link via the Excel sheet - declare "requirement id" cell and insert the id's from RDNG, also the examples (both .xls and .cgf) that come packaged with the utility show only linking to new requirements - the requirements are created while import, and i want to link existing requirements.

any solution?