Hello Daniel,
There is no setting for this, the "Zur Kasse" button of the cart module always goes straight to the checkout. It takes a small change in the view file of the module:
- Go to Display > Views, set the "View" filter on "product" and open the file "cart" for your frontend template.
- Add this line right after the first opening PHP part, just above the line starting with $tmpl = hikaInput:
$this->url_checkout = hikashop_completeLink('cart&task=show');
- Save.
The button then goes to your cart page instead, the one on your second screenshot, and your customers continue to the checkout from there with the "Zur Kasse" button of that page.