Hi, I can help you get started with this.
We do not have a transfer feature, but since Events, Organizers, and Venues are all Custom Post Types you can use the WordPress Export and Import to transfer the events between sites.
However, if you do not do a full content export and import the featured images and other admin settings will not transfer due to a limitation of the importation system.
License transfer
To transfer a go to your Account on tri.be
Then in the Account Central>Licenses find your license and click disconnect now.
Then you are able to add the license on the new site.
There is not much help we can do for transferring events as it is outside support we can provide per our terms of service, but I can try to answer any questions you may still have.
Thanks