Add Support for multiple discount codes to be applied at the same time

[Noodleyman]

This came up on a complex store this week with tens of thousands of products and multiple promotions across different brands.

The promotions are promotional codes, where a percentage off those specific items can be applied. the promotional codes are product locked.

If the customer happens to want to purchase two items across two promotions, they can only apply one of the vouchers, thus the site limits them to one promotion. Ideally it should allow both.

Perhaps a new setting within promotional codes "Solo use only", meaning if checked and that code is applied it will replace any existing applied code. If not set it will add/stack onto existing applied codes as needed.

Is this something that can be considered for a future version of CubeCart?

Thank you,