The Manage Structures page lets you view, search for, create, and delete structures, as well as change their settings.

To open the Manage Structures page, go to the Structure menu in the top navigation bar and select Manage Structures.

  

You can also reach the Manage Structures page from the structure selector menu:

 

The Manage Structures page contains the following tabs:

Since anonymous users cannot create structures or mark structures as their favorites, Favorite and My tabs are not shown when you are not logged in.

More about managing structures: