For example...
I want to sell 500 books so the counter starts at 500 and then reduces (publicly visible) as people start buying until the limited quanitiy sale is over and people may no longer purchase.
Can this be done somehow?
Also...
Extra functionality that I would like is when taking payments through PayPal, that I only will sell those 500 books if 500 people buy, so there is no money actually taken until the 500th person makes the purchase and then all payments are finalized and procesed.
Thanks!