Add Predefined Pipeline to a Managed Pipeline

The following are the steps to prepend add a predefined pipeline to a managed pipeline

Edit a managed pipeline by clicking on the Pencil icon beside the pipeline name.
Go to the Vocabularies tab, which is the default tab.
Click on the (+) button at the top right corner of the screen.
Select Register Predefined Pipeline from the drop-down menu.
Select the pipeline you want to use in the process stream and click on Save

The registered predefined pipeline will display at the top of the registered vocabularies list.