Thanks for your message.
Would you mind sharing what you’re trying to do with WooCommerce? Since your message is a little bit unclear, I can’t provide detailed guideline.
Regrading about coding, Meta Box can be used by non-coders with the help of Meta Box Builder extension or the documentation where you can copy and paste the code. The PHP part is for advanced things where you want to customize the plugin.
In case it doesn’t work for you, I’m happy to issue a refund.