Individual cart versus Global cart versus Etsy cart

Hello guys,

After installing Marketpress I am coming to conclusion that both cart solutions available, individual and global, are not suitable to me.

The individual cart solution simply doesn't allow a smooth navigation. You are not allowed to go vendor by vendor adding products to your cart and checkout at the end (as expected for an e-commerce site).

The global cart solution doesn't allow you to charge a fee from the vendors.

So my question is: Is there any middle solution (like etsy cart) foreseen for short-term?

Thank you in advance,