This feature allows you to create a related workspace field. This is important for showing the nesting with the help of our webparts.
At first navigate to the workspace list as a sitecollection administrator and click in the "Collaboration Manager" Ribbon Group.
The related workspace field requires only the generals like name, description, the contenttype to be assigned to and the require column information(pest practice: Set "No")
It is a simple Lookup, where you can select the related Workspace.
This field is used for WebParts like sub workspaces webpart, sub workspace information webpart and others.
Edit the item to set the related workspace.