Kafka (Control Center)
Here you can see all existing alias-topic combinations and the number of messages in them. Existing messages can be deleted via the context menu.
Settings
(1) Kafka Alias & Topic: This column shows the alias-topic combination in the form <Alias>:<Topic>. If you select such a line and messages are present (2), you can delete them via the context menu (Reset/Clear Kafka messages).
(2) Number: Shows the number of messages of an entry in (1).