creo schematic symbols

Schematics is extremely flexible but unfortunately, it also leaves a lot to the user to decide what they want and how to make it like they want.  

There are tutorials on the PTC web site created by the former product manager.

It is easiest to make the connector(s) shape a variable item.  That lets you create a center section that is repeated as many times as you need sandwiched between top and bottom shapes.  
Make a port that works with your connector shape and place it in the center section.
Our port looks like  without the vertical lines.  The circle is the connection point.
We made our connectors to be plain rectangular boxes.  Some people use rounded corners or other identifiers to show plugs vs sockets, we didn't.

We also designed our components with the connectors in them.  It takes more work to set up the data but when someone places a component, the correct connector is already there instead of needing to be looked up.

The thin outline is our connector shape.  It has four sides but one is covered up when part of a symbol.
A variable length connector starts with all the ports on one side and evenly spaced.
When you use it as part of a symbol or place it separately in your design, you can change the spacing, change to order, and split into multiple pieces.

Hi KH...

The people responding here are giving you good advice. I know firsthand how difficult it can be to adopt Creo Schematics. I have performed many installations and developed libraries for several companies in the past as part of my consulting business. 

Everyone is trying to help by pointing you to more tutorials and documents which, in my humble opinion, are just as confusing as the help files. By the time you decipher everything, you'll be so frustrated you'll wonder why you started down this path in the first place!

So... how about this... let me know your availability and we can set up a series of conference calls (WebEx, GoToMeeting, Teams, Zoom, whatever) and I will work with you to get you oriented and moving in the right direction. I can also throw some libraries your way including ones for some common Mil spec connectors.

Recently I lost a bid to do this kind of work under contract with a company. IMHO, they made a poor decision save a few hundred dollars in hopes that everyone else providing this kind of service cares whether they are successful or not. So... you're in luck! I'm annoyed at not being chosen so I will simply help you for free for as long as you need. Don't try to understand my logic, LOL... it only makes sense to me. 

If you wish, write back in private with a good contact email or phone number. I'll send you my contact information, too and we can work together offline to get you up to speed quickly.

Thanks!!

-Brian

PS: To anyone else having difficulty setting up Creo Cabling, Creo Schematics, or Creo Piping (including Spec-Driven Piping)... simply introduce yourself and I'll do my best to help if I can.