f5 ASM Logging Profile - Key/Value

Hello! When I create a new logging profile and specify a remote server, I can choose between CSV or Key/Value. If choose CSV, I am able to pick the fields I want to log. However, if I choose (Key/Value), I cannot choose the fields.

Is there any way to choose key/value and select the fields you want? I would much rather choose Key/Value, but I also want to choose the specific fields I want.

We currently have a logging profile setup as CSV and choose the fields, that goes to a syslog server, which then is forwarded via a Splunk Universal forwarder to a Splunk indexer.

Thanks!