I'm trialing the file audit functionality. First I setup the connector for FIM (Configuring File Integrity Monitoring - YouTube) then setup the filter (How to Create Filters in Your SolarWinds LEM Console - YouTube) Those two videos really helped.
My focus for now is only FileRead, FileWrite and FileDelete filter so you can search those in Event search box and drag it to the conditions. Change it to "Or" condition.
I hope that helps you to get started with it.
Many thanks Vonny!