title: Is it possible to add script breaking line in R, like the cell break in Matlab
body: <p>I have been using R for a while. Sometimes it is quite annoying that when the script gets long, then you have to add a break line to separate the code. Is it possible to add script breaking line automatically, like the cell break in Matlab.</p>
  
  <p>something like this:</p>
  
  <p>code 1</p>
  
  <hr>
  
  <p>code 2</p>
  
  <p>Thanks:)</p>
  
  <p>Best, Qin</p>