Convenience fees for in person Transactions

Currently, the CR software has a limitation regarding Convenience fees in that:

• Convenience fees cannot be applied to in-person transactions.

Can we add a feature to add a checkbox or the ability to apply a convenience fee for using credit card. Using credit card is a "convenience" in that a customer does not have to go to the bank to grab cash. Also, most businesses in our area are doing this for in-person transactions... especially restaurants.