A new licence is added in the two steps.
After you click the New License button at the screen showing the list of Licenses, first you select the product you would like to get a new license for, in other words, you select a License Class. Then you select a license capacity.
Selecting a License Class
The list of License Classes that appears at the screen corresponds to the set of License classes allowed for the KA plug-in you use to request a license.
Specifying a new license capacity
Licenses of each License Class have a particular configuration settled by the issuer - the Parallels Key Administrator. For offline KA plug-ins licenses configuration is fetched from the Parallels Business Automation - Standard database, and for online KA plug-ins it is taken online from the Parallels Key Administrator server.
Depending on a License class (i.e., a licensed product), a license configuration differs.
Some licenses are a single file without any additional features, other licenses may be of a different capacity (for example, Parallels Plesk Control Panel license may be for different number of domains, Virtuozzo licenses may be for different number of Containers) and include a number of additional features, a license may also include additional license keys (gameserver or anti-virus) and a number of additional features may be available both as a standalone services and in the frame of one of another additional license key. Additional license keys are separate licenses, but they are included in a basic license and shipped together with it.
Additional keys and features are sold as included or complementary services in the frame of a license. Prices and conditions for licenses and additional keys/features are specified per hosting plan.