I would like to add some comment block or element in my JMeter script.
This would be useful to understand the script later on.
Currently, I have added a BSF Listeren, but this gives errors during execution.
Any idea's?
Your error does not come from Comments but from the fact that you didn't select any "Language" in your BSF Listener.
I tried it you can add comments in Beanshell for example using this syntax
/** * test */
Note there is also a "Comment" field in all elements.