You can create and save your own system-specific templates. Whenever multiple roles apply, the user is granted the highest privileges of the set. The user cannot log in to ControlZhone until you reactivate the account. Yes, for optimal performance, they should be installed on the same machine. All other managers can be distributed anywhere on the network.
Instances can themselves be containers, in that they can contain other objects.
Yes, ControlZhone allows you to have multiple windows open at a time. This feature is useful for simultaneously displaying details of different objects in the network. For example, you can have one window open, displaying details on a device. At the same time, you can have a second window open, displaying details on a particular card on that device. Deselect the Automatic Update checkbox.