You can generate features for the manufacturing assembly.
Click Play to watch the video:
From the Authoring section of the action bar,
click Generate Features
.
The Generate Features panel appears.
Click the manufacturing assembly item from the 3D geometry window.
Click OK in the Generate Features dialog
box.
Subparts and manufacturing representations generates under the manufacturing
assembly item, and once generated, appear in a green color. If you do not want to compute,
click Cancel.