You can nest a detail component within a host sweep profile family (wall sweeps, roof fascia, gutters, and slab edges) and use the visibility controls to specify when the detail component displays within a project.
When the sweep is cut in the project, the detail component displays depending on the visibility settings you specified within the host sweep family file. You can also have multiple detail components display at particular visibility levels for a specific view cut host sweep.
Example of curtain mullion with nested detail component
To load a detail component
To add the detail component to the host sweep
To specify detail component visibility
After it is loaded in a project, the host sweep detail displays when cut and at the detail level you specified.