Link Unlinked Collection is a workflow utility that allows users to quickly list and link collections that exist in the blend file but are not currently linked to the active scene. This eliminates the need to manually search for and drag collections from the Blender File display mode in the Outliner. The tool is particularly useful when managing projects with multiple scenes, allowing collections created in one scene to be easily brought into another. It is accessible directly from the Outliner's right-click context menu.