Automatically adding a related product to cart when another product is added

I'm setting up a store that has both services (offered on a subscription basis) and products. Some of the products need to be purchased in conjunction with other products and some services are required for some products. Some examples:

• If you add a tablet to your cart, you need to purchase a monthly subscription in addition to the price of the tablet
• Certain accessories can only purchased with a tablet. So if you don't already have a tablet in your cart one would need to be added with the accessory.

Is there any way to do this?

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. 

4 hours ago, NTL said:

I would like to allow a customer to add a [subscription] product to their cart without being redirected to the checkout page.

As explained above, this isn’t possible on Squarespace right now. 

Has any changes been made to this functions. I want customers to be able to subscribe to multiple subscriptions. Example I have a 3 coffee a month subscriptions and then a 2 coffee month subscription.  This way they could do 5 coffees a month.

Because I do this using variants I could uses a 5 variant with the default variant being none but I do not see a way to have a default variant