title: kdevelop: comment out block
body: <p>I can't find any shortcuts for commenting out blocks of code.</p>
  
  <p>before:</p>
  
  <pre><code>int main() {
     std::cout &lt;&lt; "my awesome program" &lt;&lt; std::endl;
     return 0;
  }
  </code></pre>
  
  <p><kbd>CTRL</kbd> + <kbd>/</kbd></p>
  
  <pre><code>// int main() {
  //   std::cout &lt;&lt; "my awesome program" &lt;&lt; std::endl;
  //   return 0;
  //}
  </code></pre>
  
  <p>This is a pretty essential feature for me and I can't seem to find it anywhere in the menus. Does kdevelop not have this functionality?</p>