title: GNU parallel interactive mode. How to make chunk request instead of request for each job?
body: <p>Is it possible to make chunk request instead of request for each job?</p>
  
  <p><code>function $1 $2 $3 | parallel --gnu --group --interactive -k -j 4 function_run {}</code></p>
  
  <p>In that case, GNU Parallel is asking question to run each job, but i want question to run next chunk of 4 parallel jobs. And it would be great, if I could change -j in run process. </p>