Checkout > Billing / Shipping Address
Required Address Information:
If you would like the customer to fill out more contact information during checkout, you can make certain fields visible by checkmarking the item under "Show?". If the field is absolutely necessary to fill out, you can checkmark it under "Required?". Just make sure if you checkmark the field "Required?", you also checkemark it under "Show?" (if allowed), otherwise the field will not show up.
Continue Button - Options:
This will change the position of the Continue button on the checkout pages. It can be moved to the left, center or right side of the page.