Are you a service provider (registered VCSP)? If so, please apply for the service provider forum. There is an entire forum on VAC and you will find there what you are looking for, including the RC version to test out.
To apply for the VCSP forum, go into the User Control Panel of this forum, select User Groups in the tabs, select "Veeam Cloud Service Provider” and finally the “Join selected” option. As soon as your email address is verified to be part of the Service Provider domain, your application will be approved.