Click the add button (+), then select an app and click Add.Click Shortcuts at the top of the window, then select Function Keys from the list on the left.Choose Apple menu  > System Preferences, then click Keyboard.You can also make the function keys appear automatically when you use specific apps: Press and hold the Fn (Function) key on your keyboard to see F1 through F12 in the Touch Bar. Choose Run directly in Copy the Hardware Code and paste it in the KeyGen. To run the keygen on Mac, you need a software that can run Windows-based programs on Mac – We recommend using WineBottler Right-click or Ctrl-click ‘AbletonKeyGen.exe’ and open with Wine. The.jar runs perfectly on my PC, but I tested it on my Macintosh (which, BTW, does. I have JDK on my PC, but I need it to run on a mac for school. I've written a relatively simple java application. This is a useful method to replace a lost serial number for software that you have bought. You can then use any of the generated serial numbers to authenticate the application. A keygen, or key generator, is an executable file that you can use to generate serial numbers for the application for which it was created. These prorgrams are designed mostly for running Windows on a Mac, but you can also use them to create a virtual machine that runs macOS in a window on your Mac desktop.