you need create a paypal button ( add to cart ) in your paypal profile just only you have a account,if you not have account you need to create.

when create a button whit your product description and price,after give you a HTML code to insert in your page.

Hello Eric,

Unfortunately at the moment when you add a product in the cart the system sends you to the cart page.

I would suggest you to open and "Idea" post where you suggest the feature you would like to see in the future releases of the program.

Many thanks!