Didn't the Pipe Network to Profile automatically add structure and pipe labels to the profile once it completed the wizard?
These are the steps I have used.
Select a structure
Alignment from Network
Select downstream structure
Create a Alignment
Create profile and profile view (Checked)
Create Profile from Surface
Draw in profile view
Create Profile View - Wizard
Finally, Create profile view.
The alternate is to select a pipe network part on the profile view,
Add Labels
Entire Network Profile
Thanks again.