Those are custom functions. Do you have FileMaker Pro Advanced? That is what is required to create or edit custom functions.
I have Filemaker Pro 13 v5.
Is there a way to bring those functions in from the template file into my solution?
You will need Filemaker Pro Advanced. Which is highly useful for a variety of other reasons including script debugging. You may be able to find somebody to do this for you if you give them access to your file. But really - best is to go ahead and get Advanced.