I have a few accounts where more than one person would like to administer the account. Obviously, they could share a common username and password to login to the ISPConfig3 control panel. Is it possible for each of them to be setup as a client, but theoretically own the same account?
Yes, thats possible. 1) Create a client for this account. 2) Then you can add one or more additional ispconfig CP users (System > CP Users > Add User). Just make sure that the new CP users have the same default group and groups selected then the original CP user that was created automatically as you added the client.