Multiple cash discount GLs in OBXI

Dear Gurus,

Is it possible to maintain multiple Cash Discounts GL accounts in OBXI for cash discounts granted.

We have a requirement where different cash discount accounts are being used depending upon customer location.

When i explored currently OBXI allows me to maintain single GL account however, activating tax code will enable me to maintain GL accounts.

But wanted to know the impacts on activating this check box? will there be any tax impacts or pre-requisites?

Thanks for valuable inputs.

Regards,

Chris