Data Management Capabilities > Managing Part Structures > Advanced Assembly Editor Overview > Show or Hide Occurrences > Display Single or Multiple Levels
  
Display Single or Multiple Levels
Assemblies displayed in the Assembly Editor pane show only one level of their product structure. Click the display multiple levels icon to show all of the parts for all assemblies sorted by level. This display does not show the connection between an assembly and the parts it uses. When you want to return from a multiple level display to a single level, click the display single level icon .