Marketpress individual seller accounts through paypal

Hi,

Is there a way that I can set up users to have payments go through their own paypal accounts, and not going through chained payments?

For example, I would like a user (seller) on my network to be able to post a product on the site, then when a customer chooses to purchase their item, it directs the paypal information to the seller, creating a direct payment system. The trouble I’m having is finding a way for users to input their paypal information on my site, instead of putting in my own, as I do not want to chain payments. I have already installed Marketpress on a wordpress network, along with Buddypress. Any help would be appreciated.

Thanks!