We currently dont have a way for the parser to match events over multiple lines. That being said, the following might help to resolve this qeustion;
1 If you set the Data Source Data Retrieval to a method other than default you can define the number of lines per record.
2 You could use the MEF Agent for Windows or Linux which also have the ability to take events over multiple lines and send them to the receiver as a one line record. For that the Data Retreval method would be MEF.
I hope this helps
I will have to play with that and see how it does.