Nexus license key identifier for multiple programs

Would be nice to have a option to set the identifier for nexus license keys to a unique code, Example say we want to sell lots of different keys for different products then we can use a unique code to identify the product it is being used on, at the minute if we sell 2 different license keys for different products and PROGRAM A costs $25 for a license key where as PROGRAM B costs $10 for a license key, now I download PROGRAM A and purchase PROGRAM B's license key and use either my name / email or display name and the key and bingo the program is registered as licensed as the only identifier was my name etc etc etc, if we could use a unique code that will solve the problem