Deactivating licence

I want to move my present licence for Opus 11 to another machine - please can you tell me how to go about this?
Thank you

Just uninstall Opus on the old one, and install it on the new one the same as you did originally. If you no longer have your licence details, you can have the gpsoft.com.au website resend them.

If you want to transfer your configuration, remember to use Settings / Backup & Restore before you uninstall. Uninstalling will wipe the config.