Assembly Design > Using Assembly > Working with Assembly Components > Assembly Operations > Modifying Assemblies > About Activating a Component in an Assembly
  
About Activating a Component in an Assembly
New features or other model data can be created for a component in an assembly. Select the component from the Model Tree or graphics window, right-click and choose Activate from the shortcut menu. In the Model Tree an active component is indicated by:
—Activated part
—Activated subassembly
In an active component you can add or redefine features, edit relations and Family Tables, and perform some setup actions. Operations that can be performed on other components in the assembly are limited to those found in the right-click menu or available when you click the arrow next to Options. The inactive assembly components become grey and transparent. Set the transparency level using the style_state_transparency configuration option.
After you have modified the component, you must activate the main assembly to continue working.