Broadcast theme: adding dots under product image

[Mandrew]

Hi guys,

I'm trying to adding dots under the product image of "tab collections" and "featured collection" of my home page.

My goal is to allow customer to check all the photos without click into the product page and enhance the shopping experience.

Outcome as below reference:

My website is snaptips.shop, please feel free to let me know if you have any questions.

Thanks!