marketpress attributes

is there a way to setup marketpress to allow multiple attributes?

like for example on a product page i need it to show a dropdown for size

like for an anklet sizes are 8" to 12" and after size 12" price would go up

there is no way i can list a new product for every size.

i been playing around with custompress a bit, when i edit a product i can choose from the custompress fields, but it does not place the dropdown for a customer to choose from.

is there anyway to make it work how i want?