Move the Business Views to new folder

have created business views on dev folder. Now I want to move the business views to production folder. I tried using import, export wizard and when I import the BV it says CUID already exists bla bla bla error. So I checked overwrite option, then it deleted the objects from source folder and moved them to new folder.

What I want is to keep objects in old folder and move them to new folder??? Can anyone tell me what I am missing here?

Thanks...