Hi,
It is possible.
You can create a menu item of the type "HikaShop checkout" via the Joomla menu manager, and then select this menu item in the "Force menu on checkout" setting of the HikaShop configuration:
www.hikashop.com/support/documentation/5...ml#checkout_checkout
The URL of the checkout will then be:
index.php/{alias of the parent menu item}/{alias of the menu item}
So, if you create that checkout menu item with the alias "checkout", and select a menu item item with the alias "cart" as parent, you will get the URL you talk about in your example.
Of course, if the checkout menu item doesn't have a parent, then you can have only index.php/checkout as the URL of the checkout.
And you can even remove the "index.php" part of the URL if you configure Joomla's SEF settings to not need it:
www.balbooa.com/help/knowledge-base/seo/...-index-php-from-urls