How do I configure MarketPress for bundle pricing?

How do I configure MarketPress for bundle pricing? Can it be configured to do this?
I want customers to get a discount if they purchase more than 1 item.
For example: I have 2 sizes of candles. If a customer buys 1 -16oz candle is costs $18. Or buy 2 for $32. I want each additional candle added to cost $16. The same with the other size candle. 1 - 26oz cost $24. Or 2 for $40. Each additional will cost $20.

Thanks,
Joann