Allow SSH key management at the global/team level instead of by each user individually

Please add functionality to allow a global admin user to arrange SSH keys for every user that is granted access to the repositories.

For example, as an individual user I can add my SSH keys at page: https://bitbucket.org/account/user/kallon/ssh-keys/

But we'd like to add per-user (staff members) SSH keys through a team/group orientated admin settings page like at: https://bitbucket.org/account/user/invigorgroup/ssh-keys/

I am disappointed that an Admin user cannot administer the keys for everyone accessing the repositories.

For example, if we have a policy that we must reset all SSH keys every 6 months, there is no way to enforce that.
I could remove the user from having access to the repos until they change their keys, but how would I know if they have actually changed the key?
There could be a notification I can configure that will guarantee specific notification that a user's key has been removed and replaced with a different one.

Cheers