Github user FSchumacher commented on the issue:
https://github.com/apache/jmeter/pull/341
I wonder, whether instead of or additionally to the new `setIgnore` method,
we should add and expose a `setMetadata(type, content)` method.
I believe it would be useful for example to:
* mark samples to be ignored by listeners and such
* use the information later on to group by (a use case would be to group by
some user given metadata in the view results tree)---
