I figured out the custom menu on my own. But the info should really be in the theme documentation to help others.
This is the setup information I was given:
file:///G:/MamaJeneDesigns/Website/themeforest-21086670-turan-multipurpose-woocommerce-wordpress-theme/Main_Files/Documentation/index.html
There are a lot of typos ha but if you navigate to Customizations > Mega Menu > there's a link that says "Custom Menu". Click that and it goes no where. It's as if I was give an incorrect setup doc. I had to google for most of the information. Or figure it out by trial and error. Super frustrating.