How to alphabetically sort the code in an XML file inside Intellij IDEA 13 for Android?

Question

How to alphabetically sort the code in an XML file inside Intellij IDEA 13 for Android?

I used eclipse for training in android, but now using Intellij IDEA 13. I’m used to the eclipse graphical string editor, which can alphabetically sort the string.xml file for me. I want to do the same in intelliJ, but could not find a solution. Here is the code

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="app_name">ActionBar App</string>
    <string name="hello_world">Hello world!</string>
    <string name="action_settings">Settings</string>
</resources>

and I want to sort it alphabetically as follows

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="action_settings">Settings</string>
    <string name="app_name">ActionBar App</string>
    <string name="hello_world">Hello world!</string>
</resources>