title: How to sync localized storyboards' strings after modifying storyboard in Xcode 5
body: <p>I'm just starting to look at IOS Apps' localization in <em>XCode 5</em> and I've tried to add an <em>Italian Localization</em>:
  <img src="https://i.stack.imgur.com/laHom.png" alt="Adding Italian Localization"></p>
  
  <p>Xcode 5 automatically generates the <em>Main.strings</em> file with a single entry, for the only label I've put within the <em>Main.storyboard</em> file:</p>
  
  <pre><code>/* Class = "IBUILabel"; text = "Label"; ObjectID = "PeT-4z-NSf"; */
  "PeT-4z-NSf.text" = "Etichetta";
  </code></pre>
  
  <p><img src="https://i.stack.imgur.com/y7UQ0.png" alt="XCode 5 generated file"></p>
  
  <p>If I later modify the <em>Main.storyboard</em> file adding a new button to the view, then how should I tell <em>Xcode 5</em>, if possible, to add missing localization strings to the <em>Main.strings</em> file? Should I add a new entry by hand by looking at the <em>Object ID</em> field in <em>Interface Builder</em> (it works, but I don't know if this is how it is meant to update storyboards' localization)? Can I run something like <em>genstrings</em> on the <em>Main.storyboard</em> file to extract all the labels' text and add the new ones to the localized <em>Main.strings</em> files?</p>