Broker Destination Properties > 
  Durable Subscriptions
 
This tab displays a list of the durable subscribers to the current topic 
  destination.
For each subscriber, the table specifies the Client ID of the subscriber, the 
  number of messages awaiting to be consumed, and the state of the durable subscription.
To delete a durable subscriber:
  - Click on the subscriber in the table to select that subscriber.
- Click the Delete button. Note that this deletion is immediate - you 
    do not have to click on the OK button.
To purge messages for a subscriber:
  - Click on the subscriber in the table to select that subscriber.
- Click the Purge button. Note that this action is immediate - you 
    do not have to click on the OK button.