If set isn't created, create him.
Open «Store» - «Products» tab - in left sidebar open menu item «Sets» and press «Plus» button.
Create set with id bestsellers. How to specify set id.

When the set with id bestsellers is created, drag some products into it and these products will be automatically published here — right on your storefront homepage.

If set isn't created, create him.
Open «Store» - «Products» tab - in left sidebar open menu item «Sets» and press «Plus» button.
Create set with id discount. How to specify set id.

When the set with id discount is created, drag some products into it and these products will be automatically published here — right on your storefront homepage.