An engine upgrade changes what RadarOpus can do, not what is in your library: your books and repertories stay as they are, and the Diamond engine replaces Gold.
On the UK package pages Gold is the engine of Advanced and Diamond is the engine of Optimum. Features depend on both package and engine, so compare the packages to see what each lists.
Activation instructions are sent by email after purchase. If you do not yet have a RadarOpus customer account, register your licence details with Zeus Soft first; that account is separate from your Radar UK shop account. Ask us before ordering if you are not sure your current licence is the right starting point.
