The work area (user interface) > Structure Browser > Detailed lists in the browser
  
Detailed lists in the browser
When the Show details icon in the upper left hand corner of the Structure Browser is selected, the browser displays additional information about objects, grouped under the following headings:
• Model Name - Indicates the Model Name of the object.
• DB-State - The state of the object in the database.
• # of Shares - Indicates the number of shares existing of a shared part, assembly, or workplane.
• Sel Inst Context - Indicates the context of a selective instance.