Hi, my boss bought the Sharp XE-A213 electronic cash register and we used it for a while in London and now we're using it in our Casino in Ghana. Basically everything has been set up but the problem is we sometimes compliment some of the customers with free drink and food. Can you please give me the process to program a key to print the word COMP instead of CASH, for example, after selecting the necessary item (food /drink) and I press that key plus the print out key, it'll print out the receipt with the details but instead of CASH, it should print COMP? Thanks so much as I couldn't really get it from the manual and its a matter of urgency.

Thanks in advance.