lammspillning on "[Plugin: WooCommerce - excelling eCommerce] Can't set variation default price"

I have several variable products and it's always my "singular" variation price thats showing on the site. How can I change in a product so that for example a "m2" variation price is shown as default instead of the singular variation price? In my general tab I can only see the sku field.

http://wordpress.org/extend/plugins/woocommerce/