NTL

Hello, I would like to allow a customer to add a product to their cart without being redirected to the checkout page. I would like them to stay on the same page. A bonus would be to have them add a product to their cart and be redirected to a different page that I choose. The business case is that I need customers to buy an initial, one time service product, and then subscribe to an ongoing service product. I have created a "step 1 of 2" page with the subscription product and a button that leads to a "step 2" page with the initial set up product. The problem is that when a customer adds the subscription product to their cart they are redirected to checkout and I want them to go to the second page.