Three buttons in cart for 3 coupon codes

We purchased AWO Pro. We offer 3 coupons:
free product1, with minimum purchase
free product2, with minimum purchase
2.5% discount to each product, no minimum purchase, maximum of 25%

We want to enable the coupons by buttons. Instead of coupon code text input, 3 buttons will display in the cart. When the customer clicks a button, that coupon will be applied to the cart items.

Coupon 1 adds free product1 to the cart, with minimum purchase

Coupon 2 adds a free product2 to the cart, with minimum purchase

Coupon 3 adds a free 2.5% discount to each products in the cart, no minimum purchase, maximum of 25%t

Each coupon also displays a unique Terms and conditions checkbox.

How do we accomplish this?

Here is a link to a mock jpeg of how it may look:
http://rooksads.net/cart-3-discounts.jpg

Hello,

I think you will need a developer to do this as it would require altering code within the cart. Looking at the image, looks like you are using a one page extension? If so, then the altering would have to be done in the extension.