Using the Structure Tree or sBOM Tree > About the Filter for Trees
  
About the Filter for Trees
When you apply a filter to the Structure Tree or the sBOM Tree, only nodes defined in the Filter Viewables dialog box are displayed. You can expand and collapse the nodes to see all or only the filtered nodes for a part or subassembly. The number of nodes viewed versus the total number of nodes is displayed. You can save the current filter settings for use across multiple sessions.