Difficulty with product title

Hi,

I’m using Free version for now. I have made a basic ecommerce website. I have 2 categories and 10+ sub-categories collectively on my website. When I enable Product Title (I am using an image to show as a banner), it shows the same image on the 1st category and 2 sub-categories under the 1st category.

I want to know how can I add different Product Title to each category and all sub-categories individually.