You can update the routing and automatically connect components added to a plumbing system.
- Use the System Editor to add the component to the existing system.
- Verify that there is an open connector in the system where you are connecting components, and if necessary add a tee to a pipe segment.
- Highlight one of the components in the existing system, and press Tab until a preview of the path from the added component(s) to the existing system displays.
- Click Modify | Piping Systems tab
Layout panel
Generate Layout or 
Generate Placeholder . - Use Layout tools to create a layout for the new ductwork.
- Click
Finish Layout when you are satisfied with the routing of the piping for the system. The piping is created according to the specifications in the Pipe Conversion Settings dialog.