Hello,
That can be hidden with the following CSS:
/* Hide "no comments" on the GDV1 detail page when not using reviews */
.sd .sd-ratings .geodir-pcomments {
display: none!important;
}
I have added that to your customizer -> Addiitonal CSS tab
About the Supreme header featured area image, linking that to another image field is not so difficult but would require a customization outside of what we can help with here in premium support as we do not have a hook or filter available. If you want hands on help with that, I would recommend first upgrading to GDV2, and then revisiting the idea.
https://wpgeodirectory.com/try-geodirectory-v2/
https://wpgeodirectory.com/docs-v2/themes/supreme/
Thank you for writing in with your questions. If you have new questions please open a new topic.
Thanks