Coupon Default From "unlimited" To "just Once"

Hi Tim - im new to using coupons and am using them as dual-action gallery code, then they can apply same code at checkout to retrieve their initial deposit.

I've moved to coupons as I am unable to clear all unused deposits on an annual basis.

However, someone found a discount code floating in the wilderness using one of those coupon scrapers I guess and was able to give themselves a hefty discount.

Can I please change the default to "once only" rather than "unlimited" ?

Also, is there a way to clear out old unused coupons?

Thankyou.

There is not an option to change the default setting for the usage. 

There is not an option to delete all unused coupons. If you created coupons in batches, you can select the batch then delete the batch.