These settings apply to all event streams.

The exact timestamp to begin reading from. Events will begin processing at the first Event on or after this timestamp. The timestamp can be selected with the DateTime picker, or typed in manually.
Automatically starts the Event Stream reader from the earliest known offset. This is usually the beginning of the Event Hub stream.
Automatically starts the Event Stream reader from the latest known offset. This is usually the end of the Event Stream.

Allows you to name the partition inside the hierarchy for the Data Domain, when specifying a partition. If left blank, the partition name will be what you enter for Partition ID.
Enter a specific partition ID if you would like to read from a specific partition only. If you would like to read from all partitions, leave this blank. If you would like to read from multiple specific partitions, create an Event Streams connection for each partition.

Click on the 3 dots on the right hand side in order to open the Json Advanced Format Dialog. This Dialog is the counterpart of the Document Definition Dialog from the External Historian. Use this Parser to specify what type of JSON message is coming in, how to parse this message, and convert it into DataHub Points. For more information, see ???MQTT Advanced Parser Tutorial
Checking this box allows the Event Stream reader to continue processing past failed messages, after logging the failed read in the Event Log. This is useful if there are points that you do not want to process at the beginning of the Event Hub Stream, or that do not fit into the Advanced Parser format. Ignoring the failed points will continue processing, skipping all these failed events, until reaching an event that the Advanced Parser is able to parse—the desired Events.
Leaving this box unchecked will stop the Event Hub reader, generate an error message in the Event Log, and retry this same event the next time the Event Hub reader is started.