title: Handling folds in Spyder
body: <p>I am coming from a VScode background , and for my recent project (on Deep Learning) I am having to manage huge code files in Spyder (Version 3), and I am not seeing any option of code folding?</p>
  
  <p>I am not willing to switch to another IDE , as Spyder is very productive for my project. </p>
  
  <p>Please suggest any hack to do it , if it is not there in the Spyder codebase.</p>