Adding a tag or new fields to log message's line .

Hello everyone,

As you know , F5 BIG-IP systems can handle different functions and generate several types of log messages . Sometimes it is difficult for monitoring team to parse these messages (for SIEM needs) and might be very helpful if there is a way to add a tag or new elements to the log message's line so , we can distinguish the logs generated from different F5 systems .

So is it possible to modify the log message fields or to add new fields ? for example .. to add a field with content "F5 LB" or "F5 DoS" "F5 WAF"...