duplicated units when importing
Add a function to “find” duplicated units that occur when using the import function (as described in below) for example in google contacts there is a “merge” function that allows the user to find duplicates without having to search for all of them
https://showmojo.com/knowledgebase#/28358-listing-import/268272-work-with-existing-listings-and-a-new-listing-import-source)
