Copy DM Package: not to replace/overwrite existing records with same keys

Hi BPC Experts,

I'm new with SAP BPC.  I wish to seek your help on COPY DM Package where it is overwriting/replacing existing records of a Model.  Would appreciate if you can check the attached file for better understanding of the scenario. Would appreciate so much any inputs and help.

Thanks a lot.

Kindest regards,

sofie