Hi,
Instead of activating the catalog mode option, turn off the "show add to cart button" both in the HikaShop configuration and in your modules and menu items settings.
That way, you'll get the same display as now. Then, create a new menu item and turn on the add to cart button in the settings of that menu item and restrict that menu item to the super admin user group so that you can access it and use the add to cart buttons on the listing there.