[Theme: HeatMap Adsense Theme] change the way the posts apear on index page

First of all i would like to say that this theme is pretty cool.

I’m not an expert at code, but have been using wordpress for quiet a while so as time goes by I’ve become knowledgeable with it.

I would like to change the way that the posts appear on the index page, i would like the categories to appear on the index page and under each category around 3 posts to appear on it, just like below:

category
– – –

Thanks in advance i look forward to get a solution to this, as I’ve been searching for a solution for this and not found anything.

https://www.ads-software.com/extend/themes/heatmap-adsense-theme/