Exclude certain events from being captured

Hello,

I want to exclude certain events coming from a certain event source. That event source is being captured with sFTP.

Here is an example of what I want to do:

Events in log file

DEBUG: Fault in module A ...

SYSTEM: Logon using...

SYSTEM: Entry deleted in...

DEBUG: Fault in module B ...

INFO: The system was...

Events I want to keep

SYSTEM: Logon using...

SYSTEM: Entry deleted in...

It seems to exist a tag I can use in typespec file, skipLineFilter. Anyone having any info on this? As of :

- using static text instead of regex in skipLineFilterType

- using mulitple skipLineFilter ( <skipLineFilter>^DEBUG.*$</skipLineFilter><skipLineFilter>^INFO.*$</skipLineFilter>)

Also, that one I have absolutely no idea what it's all about but seems a good candidate for me: eventStartFilter

Or does anybody know another way I can filter out those events?