Right-click and select the
Properties option from the popup menu.
The Properties dialog opens.
Click on the pipe run at the top of the dialog.
When you click on a pipe run, the main pipe line and all of
its runs will be selected and displayed in the dialog. If you click on the pipe
run a second time, only its properties will display.
Expand the Flow Arrows section.
Click in the Flow field, and select an option from the list.
The flow of the line changes dynamically as you scroll
through the flow options.
