You can now merge items using the Duplicates and Uniques app. Just select your interested columns and select the “Merge” option. The “Merge” option is very versatile and allows you to merge your items just the way you want it. You can save your settings as a template so that items are automatically merged.
Read more about the app in the community post here.
You can contact us at support@kolaai.com should you have any questions.