Attributes
For Mapping Filters only
The only attribute displayed for a Mapping Filter is the default value. This is the property value applied to events which do not match any mapping filter constraints and for which there is no current property value (either inherited or explicitly set in the event header).
Subscribers
The subscribers list details which objects within the Notification Service are currently using the selected Filter. A path to the filter is provided to help track down exactly which Filter is being displayed.
More Info: