Issues with existing Test Cases and Text Scripts .tc and .groovy

This is a request for help:

I would like help with the existing Test Scrips that I am taking over, I have no Katalon knowledge. My test scrips have a .tc or .groovy extension and are missing:
image

What I have is this:

But this looks incorrect - I have successfully pulled my repository from BitBucket so am unsure what I need to do next or what step I am missing. Any help or advise would be greatly appreciated.