Avoid creating duplicate models/object during merging

Hello Team,

I am using ARIS 9.5 ABA for SAP and using it for SAP Solution manager synchronization. I have created two separate projects in SAP Solman and synched with 2 separate ARIS databases. Now there are lot of similarities between these 2 databases. So I am using merging option and merging source database witn target database but after merging I found there are lot of duplicate models/objects/copies created.

Kindly suggest how to avoid creating duplicate copies of the objects/models. 

Thanks and Regards,

Dinesh Tandel