Assembly Design > Using Assembly > Working with Assemblies > To Control the Visibility of a Part Layer at the Assembly Level
  
To Control the Visibility of a Part Layer at the Assembly Level
1. On the Model Tree, click > Layer Tree. All layers are listed.
2. Click > Save status in sub models (active by default). The Save status in sub models command is deactivated and the display status of lower-level component layers is stored at the top-level assembly.
3. Select Layers in the Layer Tree, right-click and choose Save Status to save the display status in the top-level assembly.
4. Save the assembly.