Update and scale current database marketing capabilities -- 2

[login to view URL] needs to add a new "Shadow Service" button that looks identical to the Round Trip button; and functions like the RT button ... but allows customers to buy car service by the hour. The Shadow Service allows customers to click to select the date and the number of hours they want to purchase ... then purchase is processed the same way Round Trip button uses the PayPal processor to collect buyer payments then "book" the purchase and blocks the time, date, etc; per customers. 80% of said functionality is already in place ... just need to add an hourly service function to the payment check out process.