How to hide/show payment methods per product?

Hi,

In my shop I offer two different products, which both should always be paid differently:
– product 1, which is like a free sample (+shipping costs) must always be paid with iDeal instantly
– product 2, which is the actual higher valued product, may be paid by banktransfer or iDeal

I’ve been using my own PHP implementation of Mollie for some years now, but would like to move towards more standard implementations and therefore would like to incorporate this plugin instead of writing my own again.

How do I configure such a setup when using the Mollie WordPress plugin?