FusionReactor licenses can be managed in the FusionReactor Portal.
In the portal you can :
See details of all Active, Expired and Disabled licenses which are associated to your account.
See details of which servers/instances have FusionReactor registered i.e. where FR is active
Manage Users associated with your account
Download FusionReactor JAR and the Debugger Native Library files of the latest released version
Manually Activate a FusionReactor license, which is necessary when your server is locked down and you do not have outbound internet access in order to automatically activate your license key
If you wish to upgrade an existing license or purchase additional seats on an existing licenses you must contact sales. If you would like to purchase a new FusionReactor on-premise license, then you can do that here.