Is there currently a supported way to include message metadata in the delimited text output (such as offset, topic, partition, and timestamp)? After searching through the code a bit, it seems like that isn't supported without some customization on our end.

We'd like to output these fields as part of each logged message value for searching (such as indexing on it in elastic) and programatic replay (finding a particularly small window of offsets in a file).

Have I just overlooked an obvious setting that can accomplish this, and if not, would it be something useful enough to submit in a pull request?

Thanks!