As long as this notice appears we are still waiting for the Family Tree program to be completely and finally separated from the limitations imposed by new.FamilySearch.org. I have mentioned this before, but here is the current explanation from the Family Tree Project Manager, Ron Tanner.
Meanwhile, there are thousands and thousands of duplicates that can be merged. Here is a list of some of the resources that help explain the process and the limitations of the process in more detail.
Merging Duplicate Records: Article Viewer — FamilySearch.org. Help Center -- Family Tree -- search on merging https://familysearch.org/ask/salesforce/viewArticle?urlname=Merging-Duplicate-Records-in-Family-Tree-1381814853391&lang=en.
Duplicates in Family Tree | FamilySearch.org.” 2016. Learning Center https://familysearch.org/learningcenter/lesson/duplicates-in-family-tree/927.
YouTube.com Merging Duplicates in FamilySearch.org Family Tree
YouTube.com Family Tree Basics - Merging Duplicates
YouTube.com Ron Tanner -- Merging Duplicate Records in FamilySearch
YouTube.com Merging Names on Family Tree
Family Tree Quick Start Guide
Riverton FamilySearch Library
This is a long time issue with the Family Tree and there are those of us that will celebrate the day when the issue is finally resolved.