You must access the UnitY Utility page and enter the license in the command display. Getting to the Utility page You probably dont need to access the Utility page on a daily basis, but it may be entered from the Main page by typing Preset name UTILITY or @@ and pressing DMP.
If you wish to go here often, you can name a preset like that for easy access. License Codes and Reference Codes To access different software options, you have to enter a License code in the Command display and then press ENTER. To get a license code, you may be asked about your Reference code. This code is found on the Utility page within the brackets succeeding the name of the software module you require. The Status display will verify the process. You can see the status by entering ST on the command line, followed by pressing the "ENTER" button.