Describe here is how to register a folder.
For details on how to navigate the hierarchy ➯ "Navigating Hierarchies"
The [Merge] window appears only when the edition control attribute is defined for the destination cabinet, or the edition control attribute is contained in the selected attribute template.
When the same attribute value as that of any registered folder is entered in the edition control attribute field in step 5, the folder is revised to a new edition.