title: Spyder (Python) : collapse blocks of code
body: <p>I have a quite long code now and I would like to collapse some of its parts. You know, by clicking on the little + on the left of <code>while</code> or <code>for</code> loops...<br>
  The problem is : there is no way. No 'plus button', and special commands don't work (ctrl+0, ctrl+-,...)<br>
  It seems it was impossible, as I read on few forums. Maybe now there is a solution ?
  Thanks for the help, and pardon my English :P</p>