Orgs in pro edition does not work

I downloaded seafile pro and evaluating before buying license with 3 users 6.2.10 version
turned on MULTI_TENANCY = true in seahub and seafile conf.
I see org tab i am able to create org however these things does not work

non admin org user can share the file with other org user it should be restricted within the org.
Deletion of org does not work . (deletes user but not org)
creating org creates new url as org.domain.tld however it does not resolve as there is not dns mapping (how to get this done)

@daniel.pan