We are well aware that Opencart’s default checkout is a lengthy process.
But using Opencart Hide Checkout Steps / Quick Checkout extension,
you can easily hide many steps in the checkout process and make the checkout experience faster for your users.
See, many steps can be removed by setting default values for them, like Shipping, Payment method, terms, etc.
This extension supports all opencart themes including Journal 2 and Journal 3 themes and etc.
Download Installation Guide: https://s3.ap-south-1.amazonaws.com/pts-doc/user-guide-hide-checkout-steps.pdf