With the recently released Revindex Storefront v2.4 shopping cart, you can now restrict payment methods (cash, check, PayPal, credit card, etc.) by availability rule (e.g. by IP, security role, etc.). Sales order alert email is now customizable by template.

• Payment methods now support availability rule. Determine when a payment method is allowed based on user input. Require "Standard4" checkout template or newer.
• Sales order alert email is now customizable via a template.
• More accurately determine admin refund function when PayPal processor is used.
• Made autocomplete for credit card field work for Firefox.
• Made formula editor fonts slightly smaller for more readable area.
• Fixed gallery import may fail when more than one product is imported together with gallery images.