How do I add a Confirm Order button in Commerce Checkout? Using Commerce Kickstart 2

With the default checkout, the payment is taken on the Review page. Then the next page (Payment) processes with the merchant (in our case Authorize.Net).

Then there is a Confirmation Page... and the only pane on that page is Express Checkout Review and confirm' (does that refer to Paypal?). 

I guess I'm expecting to a see a 'Confirm Your Order' button of some kind, but it never appears. Basically, the order is processed and goes immediately to 'Completed'. 

How do I get that Confirmation page to appear? 

Customers will expect to see a Confirm Order page -after- they have entered their payment... rather than going -immediately- to 'Completed'.
I recommend starting at the website.com/admin/commerce/config/checkout/rules address, which will bring you to settings page where you are seeing "Express Checkout" options, which to my knowledge is not a PayPal feature and unfortunately is just shares the same name as their Express Payment Processor.

Next you want want to create a checkout rule, which will give you more control over the order process, which can be found at website.com/admin/commerce/config/checkout/rules

This process might start to get difficult, but essentially you want to create a Rule that will trigger a more detailed confirmation page, which can probably handled numerous ways and probably out of the scope of this question.