Hello, @First Idea,
1. We apologize for any inconvenience this may have caused. As we previously mentioned, the button can only be placed in the desired location with the Single Product Builder. However, since you are not using the Single Product Builder on your site, it is not possible to do so with the default layouts.
2. We have tested the navigation buttons on the home page and they are functioning properly. We have recorded a video for you to view here: https://www.veed.io/view/5952962e-139f-41c1-84b7-8171b5a71cb6?sharingWidget=true&panel=share. We believe this is likely a caching issue on your end.
Best Regards,
8Theme’s Team