We present the configuration for subclusters as just a text input field. This is not very helpful as almost all fields are in fact lists. This can get annoying when you have many agents/users/groups and have to try to scroll back and forth to find what you need to edit. This also makes it very easy to make a mistake. We should use some list-based interface here. We already have such an interface in other places, e.g. where you configure allowed shadowers.
