Hi, from inside the return on the left-hand side click on the "Import Hub" button.  You will then see the option for Importing K-1s.

Hi @TMcGlothlin  Thanks for stopping by the Community and posting your questions. Here is a support article that might help with this:
How to import a K-1 prepared in ProConnect Tax or other tax software

If you need further assistance with this we would reach out to ProConnect Support

Thank you for being here on the Community!

Mine was missing too!  I looked up the guidance on how to import.  The instructions show a "Schedule K-1" import button.  I put a call into tech support and opened another return.  When the call came, I went back to the same section, and it magically appeared.  My advice is to give it some time to appear.