Would there be any way to add a repair price calculator tool that the technician could use in the field for items that may not be in the system or may not fall under items already in the system (Such as if a technician was replacing a blower motor that came at a cost not usually seen)  Just a simple app where the tech could put in the cost of the parts and select how much time to install and it would calculate the sales tax, markup, labor and credit card charges