You can make pipelines coincidental using Copy 
and Paste 
. Consider the dimensioned sketch below:
The steps below show how to create a second pipeline coincident to the one in the example.
-
Select Edit > Select <Regional Select> Command > All to select the entire pipeline, and then select Copy
on the Edit toolbar.
-
Select Place > Pipeline to add a new pipeline. By default, the second pipeline is active. You can also right-click the POD in the Pipeline Explorer, and then select Add Pipeline.
-
Select Paste
on the Edit toolbar to place a copy of the original pipeline.
-
On your keyboard, press the right arrow key twice to rotate the pipeline 180-degrees.
-
Click once in the Detail window to place the rotated pipeline.
Select Window > Cascade so that you can view both pipelines simultaneously.
-
Select Dimension > Query 3D Coordinate Command
, and then select the stem of the origin in P-1.
-
In the Properties window, select Copy Coordinates.
-
Right-click Sheet_1 in the second pipeline (P-2) and select Activate Sheet.
-
Select Query 3D Coordinate
on the Dimension toolbar, and then select the open end of the 1.5" bore pipe.
-
Select Paste Coordinates in the Properties window, and then select OK in the Add Origin Dialog.
The two pipelines are now coincidental.
-
Select View > 3D View > Show
to open the 3D View window.
The display of the pipes resembles the example below:
