Hi @FuturShoc,
Thanks for reaching out to the Auth0 Community!
I understand you have questions about setting up Tenant Environments.
When creating new tenants as a self-service customer, there is an option to request a child tenant which includes the same features as the parent tenant. Moreover, if you have an Enterprise subscription plan with us, you should be able to freely assign child tenants on creation.
Please see the following resources to learn more:
Thanks,
Rueben