How to set "More from this seller" products seen by customers visiting a product?

Hi - was looking at my shop page and it only shows a single product under the “More from this seller” though I have 5+ products available. Also, I don’t know how to have it not show a particular product. Where is this configured? I looked through the UI and it wasn’t obvious. Appreciate any help on this.

I literally cannot seem to get an answer from customer support on this.

visit my site have all you need1