Hello,
1) Provide us with temporary WP Dashboard and FTP access to your site. We’ll check what you use for the single product because I’m not sure that clearly understand what builder system you use there instead of the default and don’t understand what options that system has. You asked able brand function and we provided it. But if you don’t have PHP skills and ask about additional customization then you need to submit customization request here because our basic support does not include additional customization.
2) Provide screenshot of the single product page and clearly highlight the place where you want to show the brands.
Regards