Install featured products and slider in the latest version??

Hello all,
Using: 3.0.2.0

I have not using opencart now for years (2+) and now I installed it for somebody.

But I already had an Journal2 theme bought. I installed this. But need to do a lot of changing before I import it to the complete site.

So now I went back from Journal2 to the default layout.

But now I miss the complete slider and the featured products.
I did not used the 3.0.2.0 version I was ended in 2.x.x.x something. So if somebody can explain me how to add products in featured and in the slider for now?

When I go to Extensions - Modules , I see it is enabled: FEATURED in HOME PAGE.

I did not used the 3.0.2.0 version I was ended in 2.x.x.x something.

What does that explain?