One Page Checkout is an option that we offer to our cloud commerce clients that allows them to streamline the checkout process for their customers. Basically what we’re doing when we enable the one page checkout is ensure that your customers are getting the shortest line at the grocery store so to speak. The one page checkout has an advantage in that it prevents your customers from abandoning their cart because they are confused by the checkout process. We offer this option free of charge to you as a tool for your business, but it is a matter of preference some businesses do just fine with a step by step process but others prefer the one page checkout.
To navigate to the One Page Checkout Options, Log in to your Admin area, go to configuration and click on one page checkout. 
Once you click you will be directed to the One Page Checkout Pannel, which offers a lot of options there are several options that you will not need to worry about so we will focus only on the ones you will need to know. If you have any questions on what a certain setting does or how to use it feel free to contact our support team to answer more questions. 
Enable One Page Checkout: Set this to True and it will enable the one page checkout process, if it is set to false, the checkout process will remain to be a multi-step procedure.
Render Terms and & Conditions: Set this to true and it will require your customer to have to check a box that confirms they have read your terms and conditions. Set it to false and no such checkbox is required upon checkout.
Default Address Country: This is set to United States by default but you can change it to another country of your choosing if you wish by clicking on the topic and clicking edit in the right hand module next to the topic.
Account Creation: This can be set to optional, which would not require a customer to create an account before checking out. If it is set to required then an account is required for a customer to check out, if it is set to create then an account will be created for each customer that checks out automatically.
Require Log in: This when set to True requires a customer to be logged in to proceed to checkout.
Make Loader message popup: Set this to True and a message that shows the information is being processed will come up when there is loading time on calculating information that the customer is providing upon log in.
Auto Show Billing/Shipping Modules: Set this to true so that all billing and shipping modules show up automatically in check out.
Telephone Required: requires a telephone number to be submitted for an order to be processed.
