How to Set Maximum Discount?

Hi there, I’m currently using Coupon Box for WooCommerce (free version), and using WooCommerce Smart Coupons plugin.

I would like to set a maximum discount rule, but unable to find any setting to set it.

I can set Maximum Discount at Woocommerce Smart plugin after the Code have generated.

But I would like to know is there any Code/Setting for me to set Maximum Discount before the code get generated?

Maximum Discount mean:
When I set 10% OFF, I can set the max. discount to only $10, when customer buy $1000 worth of items, they will only get cap at $10 discount, instead of discount $100.

Hope to hear from you soon, Thank you