The Namespaces configurations can be managed in the following ways.
Reset to Default. This will deactivate any active configurations and place all your interfaces in a default state within the root namespace. All other namespaces will be deleted.
Select Configurations. This will display all the available namespaces in a drop down list and allow you to select one
Namespace config controls
The button will actve the selected namespace
The 'stop' button will deactive that namespace (only shows if active)
The button will duplicate this configuration, allowing you to make minor edits
The button will delete the configuration
The button will present the current configuration and allow you to adjust it (useful if a password is incorrectly entered)