Piping > Routing > Routing with Extend > To Use the Route Coordinate System to Extend a Pipeline
  
To Use the Route Coordinate System to Extend a Pipeline
1. Click Extend to open the Extend dialog box.
2. Click the Use Route Csys check box to use the route coordinate system as a reference.
3. Select one of the following options to configure the extend:
◦ To Coordinates
◦ Along Csys Axis
4. Click OK to extend the pipe segment and quit the dialog box or click Apply to extend the segment and configure a new one.