Playing Along with Coupons

I just activated this plugin and have not yet had the chance to setup some discount rules, but did have a question.

Let’s say we have a live Woocommerce coupon that is giving 25% off. We want to give 10% off for bulk discount on a product, and have no issue with some combination of discount, but the total discount of 35% would be too high.

Is there some trick to limit the discount if a Woocommerce coupon is combined, so the bulk price gives 5% on top of the coupon instead of the initial proposed 10%, to max the coupon at 30%?

Cheers!
Ryan