Multi-tenancy using in Zeebe cluster

I’ve read the docs about Multi-tenancy Multi-tenancy | Camunda 8 Docs,found the following contents:

Standalone Zeebe usage
For a standalone Zeebe installation, multi-tenancy is currently available with the following options:

Authentication enabled through Identity.
By integrating an external tenant-managing component with Zeebe.

I’ve got some questions:
1.Does multi-tenancy support zeebe cluster?
2.Can I use “Identity” option in zeebe cluster?
3.Can I use “integrating an external tenant-managing component” option in zeebe cluster?