Hi, I'm collecting logs from a s3 path using "Splunk Add-on for Amazon Web Services". I want to extract a field from the s3 path string. I was able to do it using this expression `rex field=source "[.]*\/batch_id=(?<batch_id>[0-9]*)\/[.]*"`. How can I do this using Field Extraction in Splunk Cloud so that it automatically extracts this field at search time? Thanks ... View more