Consider allowing masters of a group to change projects visibility
As per ZD https://gitlab.zendesk.com/agent/tickets/90663 (internal), the customer has a team that controls the group membership of the users. However, it is the group masters who manage the projects inside a group. They can already set the visibility level when creating a project, so it sounds logical that they be able to change that after the creation as well. Also, customer cannot grant ownership to masters, since that would imply giving group membership control to masters, which is undesirable.