Multiple Variations

Looked all over the place. seems too complicated. there must be an easy way.

I’m running WP 3.8 and woo-commerce right now.

Almost all my products need to have 3 options. Size will change the price(this i have working by adding an attribute menu and then variations for the attributes.

I also need to add 2 more drop down boxes, ratio and strength. They will not change prices, however are needed to let me know how to manufacture the final product.
I have tried adding a second attribute set..however when I click on add nothing happens.

How can I go about this?

Thanks in advance for all help!

http://ww.wp.xz.cn/plugins/woocommerce/