title: Mac: Shortcut for switching between two windows of the same application
body: <p>I want to switch between two different windows opened in the same desktop on Mac (El Capitan). <strong>I can't do it with <code>cmd+tab</code>.</strong> Does anyone knows how to do it?</p>
  
  <p>None of the following shortcuts work as well:
  <code>cmd+`</code>, <code>cmd+shift+`</code>, <code>cmd+number</code></p>