Cmsmart One Page Checkout for Virtuemart is a popular one-page checkout component for Virtuemart 3. The extension greatly reduces checkout time. This can increase your online store's earnings. Plugin features: 8 preset styles and colors are available, setting a custom background image, setting a delivery date, setting fonts and icons on the checkout page, creating a layout using a handy visual editor, using Ajax, blocking spam, and supporting responsive design.