How do I add the option to quickly add something to basket, without actually clicking the product?

[TS11]

as above, quick option to add products to basket (cart)

[Shadab_dev]

Almost every theme has this feature to include quick add buttons in the collections grid showing your products.

You will probably find a checkbox that you need to enable in your settings from the customizer. It will in the section settings of collections section.

[TS11]

I have the Debut theme and cant find it?

[Shadab_dev]

I saw and there's no option to add quick add buttons actually. 

Do you want to just add to cart items from the click of the quick add buttons or do you have some specific requirements?