Block ownership change or reduce the list of available users

[rad-flu-alu]

Hi everyone!

Let's say that a user creates a dashboard or any other object, for instance, a chart. In the preferences window of that dashboard the user can change the ownership.
My problem is that the user can see the list of all users defined in Superset. I would like to disable the functionality of changing the ownership or at least reduce the list of the available users to only admin user. The reason for that is that I don't want users to get the list of all users defined in the system (in my case it is a sensitive information) and I don't want users to share with dashboards or other objects (users can do that accidently).

How can I solve this problem?

Regards,
Rafał