title: R Studio: organize code in section that can be hidden
body: <p>I still haven't found a proper way to organize my R code in R studio in sections.
  I checked the shortcuts that do exist such as ALT + L but it requires the area to be commented.</p>
  
  <p>Ideally, I would like to name line 500 to 700 with a name, hide it and then have it appear back when needed.
  What would you recommend?</p>