I recently bought your product. I am very happy with it. There's only one drawback that I can think of.  I am making a website for my wife. She's an online English teacher. I want my wife's students to be able to book multiple lessons/time slots in a SINGLE transaction. As it is, it would be frustrating for my wife's students to book individual lessons in multiple transactions, losing money on Paypal fees!  Please help us with this.   Many thanks   Jonathan